{"id":53897,"date":"2025-08-19T22:00:00","date_gmt":"2025-08-19T15:00:00","guid":{"rendered":"https:\/\/coffeefactz.com\/?p=53897"},"modified":"2026-09-03T19:57:44","modified_gmt":"2026-09-03T12:57:44","slug":"huong-dan-toan-tap-ve-luong-caffeine-trong-mot-tach-ca-phe","status":"publish","type":"post","link":"https:\/\/coffeefactz.com\/vi\/huong-dan-toan-tap-ve-luong-caffeine-trong-mot-tach-ca-phe\/","title":{"rendered":"C\u00f3 Bao Nhi\u00eau Caffeine Trong M\u1ed9t T\u00e1ch C\u00e0 Ph\u00ea? H\u01b0\u1edbng D\u1eabn To\u00e0n T\u1eadp"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">C\u00e0 ph\u00ea d\u1ed3i d\u00e0o caffeine l\u00e0 m\u1ed9t trong nh\u1eefng h\u1ee3p ch\u1ea5t \u0103n ki\u00eang \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u nhi\u1ec1u nh\u1ea5t tr\u00ean th\u1ebf gi\u1edbi, th\u1ebf nh\u01b0ng h\u1ea7u h\u1ebft m\u1ecdi ng\u01b0\u1eddi kh\u00f4ng h\u1ec1 bi\u1ebft h\u1ecd th\u1ef1c s\u1ef1 \u0111ang n\u1ea1p v\u00e0o bao nhi\u00eau. M\u1ed9t t\u00e1ch duy nh\u1ea5t c\u00f3 th\u1ec3 cung c\u1ea5p t\u1eeb 63 \u0111\u1ebfn 270 miligram t\u00f9y thu\u1ed9c v\u00e0o gi\u1ed1ng h\u1ea1t, m\u1ee9c \u0111\u1ed9 rang v\u00e0 ph\u01b0\u01a1ng ph\u00e1p pha ch\u1ebf. \u0110\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 sai s\u1ed1 l\u00e0m tr\u00f2n. \u0110\u00f3 l\u00e0 l\u1eb1n ranh gi\u1eefa s\u1ef1 t\u1eadp trung s\u1eafc s\u1ea3o v\u00e0 m\u1ed9t tr\u00e1i tim \u0111\u1eadp th\u00ecnh th\u1ecbch.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Arabica, Robusta, espresso, cold brew: m\u1ed7i bi\u1ebfn s\u1ed1 \u0111\u1ec1u l\u00e0m con s\u1ed1 n\u00e0y d\u1ecbch chuy\u1ec3n \u0111\u00e1ng k\u1ec3. FDA \u0111\u00e3 v\u1ea1ch ra m\u1ee9c gi\u1edbi h\u1ea1n an to\u00e0n l\u00e0 400mg m\u1ed7i ng\u00e0y \u0111\u1ed1i v\u1edbi ng\u01b0\u1eddi l\u1edbn kh\u1ecfe m\u1ea1nh, v\u00e0 vi\u1ec7c bi\u1ebft r\u00f5 ly c\u00e0 ph\u00ea c\u1ee7a b\u1ea1n n\u1eb1m \u1edf \u0111\u00e2u ch\u00ednh l\u00e0 c\u00e1ch \u0111\u1ec3 b\u1ea1n lu\u00f4n \u1edf \u0111\u00fang b\u00ean trong l\u1eb1n ranh an to\u00e0n \u0111\u00f3.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n<h2 class=\"wp-block-heading\">Caffeine Th\u1ef1c Ch\u1ea5t L\u00e0 G\u00ec<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Caffeine, ch\u1ea5t k\u00edch th\u00edch t\u1ef1 nhi\u00ean ch\u1ecbu tr\u00e1ch nhi\u1ec7m cho ph\u1ea7n l\u1edbn h\u00e0m l\u01b0\u1ee3ng caffeine trong c\u00e0 ph\u00ea tr\u00ean to\u00e0n th\u1ebf gi\u1edbi, l\u00e0 m\u1ed9t h\u1ee3p ch\u1ea5t h\u00f3a h\u1ecdc m\u00e0 c\u00e1c lo\u00e0i th\u1ef1c v\u1eadt nh\u01b0 h\u1ea1t c\u00e0 ph\u00ea t\u1ef1 s\u1ea3n sinh ra (kh\u00f4ng c\u1ea7n \u0111\u1ebfn ph\u00f2ng th\u00ed nghi\u1ec7m). N\u00f3 ho\u1ea1t \u0111\u1ed9ng b\u00ean trong c\u01a1 th\u1ec3 b\u1ea1n b\u1eb1ng c\u00e1ch can thi\u1ec7p v\u00e0o c\u00e1c t\u00edn hi\u1ec7u khi\u1ebfn b\u1ea1n c\u1ea3m th\u1ea5y m\u1ec7t m\u1ecfi. V\u00e0 l\u00fd do t\u1ea1i sao c\u00e2y c\u00e0 ph\u00ea ngay t\u1eeb \u0111\u1ea7u l\u1ea1i t\u1ea1o ra n\u00f3 th\u1ef1c ch\u1ea5t ch\u1eb3ng li\u00ean quan g\u00ec \u0111\u1ebfn th\u00f3i quen bu\u1ed5i s\u00e1ng c\u1ee7a b\u1ea1n c\u1ea3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1i c\u00e2y \u0111ang s\u1eed d\u1ee5ng n\u00f3 nh\u01b0 m\u1ed9t lo\u1ea1i thu\u1ed1c tr\u1eeb s\u00e2u.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Caffeine r\u1ea5t \u0111\u1ed9c \u0111\u1ed1i v\u1edbi c\u00f4n tr\u00f9ng \u1edf n\u1ed3ng \u0111\u1ed9 \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y trong h\u1ea1t c\u00e0 ph\u00ea. B\u1ecd c\u00e1nh c\u1ee9ng, \u1ea5u tr\u00f9ng v\u00e0 c\u00e1c lo\u1ea1i b\u1ecd kh\u00e1c c\u1ed1 g\u1eafng \u0103n c\u00e2y s\u1ebd nh\u1eadn ph\u1ea3i m\u1ed9t c\u00fa \u0111\u00e1nh v\u00e0o h\u1ec7 th\u1ea7n kinh, khi\u1ebfn ch\u00fang kh\u00f4ng d\u00e1m quay l\u1ea1i. \u0110\u1ee9ng \u1edf g\u00f3c \u0111\u1ed9 c\u1ee7a c\u00e1i c\u00e2y, caffeine l\u00e0 m\u1ed9t h\u1ec7 th\u1ed1ng ph\u00f2ng th\u1ee7. C\u00f2n d\u01b0\u1edbi g\u00f3c \u0111\u1ed9 c\u1ee7a b\u1ea1n, n\u00f3 l\u00e0 m\u1ed9t ch\u1ea5t k\u00edch th\u00edch nh\u1eb9 \u0111\u01b0\u1ee3c \u0111o l\u01b0\u1eddng b\u1eb1ng miligram, th\u01b0\u1eddng dao \u0111\u1ed9ng \u0111\u00e2u \u0111\u00f3 gi\u1eefa 70 mg v\u00e0 200 mg cho m\u1ed7i t\u00e1ch, t\u00f9y thu\u1ed9c v\u00e0o vi\u1ec7c c\u00e0 ph\u00ea \u0111\u00f3 \u0111\u01b0\u1ee3c tr\u1ed3ng, rang v\u00e0 pha nh\u01b0 th\u1ebf n\u00e0o.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Con s\u1ed1 miligram \u0111\u00f3 quan tr\u1ecdng h\u01a1n nh\u1eefng g\u00ec h\u1ea7u h\u1ebft m\u1ecdi ng\u01b0\u1eddi v\u1eabn t\u01b0\u1edfng, b\u1edfi v\u00ec caffeine kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n th\u1ef1c ph\u1ea9m, n\u00f3 l\u00e0 m\u1ed9t trong s\u1ed1 \u00edt nh\u1eefng ch\u1ea5t \u0111\u01b0\u1ee3c FDA ch\u00ednh th\u1ee9c ph\u00e2n lo\u1ea1i l\u00e0 thu\u1ed1c (drug) nh\u01b0ng l\u1ea1i c\u00f3 m\u1eb7t r\u1ed9ng r\u00e3i trong \u0111\u1ed3 \u0103n th\u1ee9c u\u1ed1ng h\u00e0ng ng\u00e0y. N\u00f3 c\u00f3 li\u1ec1u l\u01b0\u1ee3ng \u0111o l\u01b0\u1eddng \u0111\u01b0\u1ee3c, c\u00f3 t\u00e1c d\u1ee5ng \u0111o l\u01b0\u1eddng \u0111\u01b0\u1ee3c, v\u00e0 c\u00f3 m\u1ed9t ng\u01b0\u1ee1ng tr\u1ea7n \u0111o l\u01b0\u1eddng \u0111\u01b0\u1ee3c tr\u01b0\u1edbc khi b\u1eaft \u0111\u1ea7u g\u00e2y ra r\u1eafc r\u1ed1i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e0 ph\u00ea l\u00e0 ngu\u1ed3n cung c\u1ea5p caffeine t\u1eeb ch\u1ebf \u0111\u1ed9 \u0103n u\u1ed1ng l\u1edbn nh\u1ea5t \u0111\u1ed1i v\u1edbi h\u1ea7u h\u1ebft ng\u01b0\u1eddi tr\u01b0\u1edfng th\u00e0nh tr\u00ean h\u00e0nh tinh. Tr\u00e0 x\u1ebfp th\u1ee9 hai. N\u01b0\u1edbc t\u0103ng l\u1ef1c v\u00e0 soda theo sau. Nh\u01b0ng c\u00e0 ph\u00ea m\u1edbi l\u00e0 n\u01a1i b\u1eaft ngu\u1ed3n ph\u1ea7n l\u1edbn l\u01b0\u1ee3ng n\u1ea1p v\u00e0o h\u00e0ng ng\u00e0y, \u0111\u00f3 ch\u00ednh l\u00e0 l\u00fd do v\u00ec sao vi\u1ec7c hi\u1ec3u r\u00f5 caffeine l\u00e0 g\u00ec, v\u00e0 n\u00f3 l\u00e0m g\u00ec, ph\u1ea3i b\u1eaft \u0111\u1ea7u t\u1eeb \u0111\u00e2y.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u01b0 m\u1ed9t b\u1ea3n \u0111\u00e1nh gi\u00e1 khoa h\u1ecdc \u0111\u01b0\u1ee3c xu\u1ea5t b\u1ea3n tr\u00ean t\u1ea1p ch\u00ed Frontiers in Neuroscience \u0111\u00e3 vi\u1ebft r\u00f5:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">&#8220;Caffeine xu\u1ea5t hi\u1ec7n t\u1ef1 nhi\u00ean trong nhi\u1ec1u lo\u1ea1i th\u1ef1c ph\u1ea9m kh\u00e1c nhau, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00e0 ph\u00ea, tr\u00e0, v\u00e0 ca-cao, v\u00e0 n\u00f3 \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng m\u1ed9t c\u00e1ch an to\u00e0n nh\u01b0 m\u1ed9t ch\u1ea5t k\u00edch th\u00edch nh\u1eb9 trong m\u1ed9t th\u1eddi gian d\u00e0i.&#8221;<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1eeb an to\u00e0n trong c\u00e2u \u0111\u00f3 \u0111ang th\u1ef1c s\u1ef1 l\u00e0m nhi\u1ec7m v\u1ee5 c\u1ee7a n\u00f3. Caffeine c\u00f3 m\u1ed9t l\u1ecbch s\u1eed \u0111\u01b0\u1ee3c ghi ch\u00e9p r\u00f5 r\u00e0ng v\u00e0 l\u00e2u d\u00e0i, nh\u01b0ng ch\u1eef &#8220;an to\u00e0n&#8221; lu\u00f4n \u0111i k\u00e8m v\u1edbi m\u1ed9t d\u1ea5u hoa th\u1ecb (asterisk) g\u1eafn s\u1eb5n: li\u1ec1u l\u01b0\u1ee3ng quy\u1ebft \u0111\u1ecbnh k\u1ebft qu\u1ea3. H\u00e0m l\u01b0\u1ee3ng caffeine c\u1ee7a c\u00e0 ph\u00ea dao \u0111\u1ed9ng \u0111\u1ee7 l\u1edbn gi\u1eefa m\u1ed9t shot espresso \u0111\u01a1n l\u1ebb v\u00e0 m\u1ed9t ly cold brew c\u1ee1 l\u1edbn, \u0111\u1ebfn m\u1ee9c hai ng\u01b0\u1eddi \u0111\u1ec1u ngh\u0129 r\u1eb1ng h\u1ecd \u0111ang u\u1ed1ng &#8220;m\u1ed9t t\u00e1ch&#8221; c\u00f3 th\u1ec3 \u0111ang ti\u00eau th\u1ee5 nh\u1eefng kh\u1ed1i l\u01b0\u1ee3ng ho\u00e0n to\u00e0n kh\u00e1c nhau c\u1ee7a c\u00f9ng m\u1ed9t lo\u1ea1i ph\u00e2n t\u1eed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00f3 ch\u00ednh l\u00e0 kho\u1ea3ng c\u00e1ch m\u00e0 h\u01b0\u1edbng d\u1eabn n\u00e0y s\u1ebd thu h\u1eb9p l\u1ea1i.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n<h2 class=\"wp-block-heading\">C\u00e1ch Th\u1ee9c Caffeine T\u00e1c \u0110\u1ed9ng \u0110\u1ebfn B\u1ea1n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00e1c d\u1ee5ng n\u00e2ng cao n\u0103ng l\u01b0\u1ee3ng n\u1ed5i ti\u1ebfng c\u1ee7a caffeine b\u1eaft \u0111\u1ea7u t\u1eeb m\u1ed9t c\u01a1 ch\u1ebf duy nh\u1ea5t: n\u00f3 ch\u1eb7n c\u00e1c th\u1ee5 th\u1ec3 adenosine trong n\u00e3o, nh\u1eefng tr\u1ea1m li\u00ean k\u1ebft th\u00f4ng th\u01b0\u1eddng ti\u1ebfp nh\u1eadn t\u00edn hi\u1ec7u h\u00f3a h\u1ecdc b\u00e1o cho c\u01a1 th\u1ec3 b\u1ea1n bi\u1ebft \u0111\u00e3 \u0111\u1ebfn l\u00fac ch\u1eadm l\u1ea1i v\u00e0 ngh\u1ec9 ng\u01a1i. Khi nh\u1eefng th\u1ee5 th\u1ec3 \u0111\u00f3 b\u1ecb ch\u1eb7n, t\u00edn hi\u1ec7u bu\u1ed3n ng\u1ee7 kh\u00f4ng bao gi\u1edd h\u1ea1 c\u00e1nh, v\u00e0 b\u1ed9 n\u00e3o c\u1ee7a b\u1ea1n ti\u1ebfp t\u1ee5c ch\u1ea1y \u1edf t\u1ed1c \u0111\u1ed9 t\u1ed1i \u0111a.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7n Y t\u1ebf Qu\u1ed1c gia \/ MedlinePlus, d\u1ecbch v\u1ee5 th\u00f4ng tin y t\u1ebf li\u00ean bang \u0111\u01b0\u1ee3c duy tr\u00ec b\u1edfi Th\u01b0 vi\u1ec7n Y khoa Qu\u1ed1c gia Hoa K\u1ef3, di\u1ec5n \u0111\u1ea1t \u0111i\u1ec1u n\u00e0y m\u1ed9t c\u00e1ch r\u00f5 r\u00e0ng:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">&#8220;Caffeine ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng c\u00e1ch ng\u0103n ch\u1eb7n adenosine, m\u1ed9t ch\u1ea5t h\u00f3a h\u1ecdc trong n\u00e3o gi\u00fap ch\u00fang ta c\u1ea3m th\u1ea5y bu\u1ed3n ng\u1ee7.&#8221;<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ef1 ng\u0103n ch\u1eb7n \u0111\u00f3 ch\u00ednh l\u00e0 to\u00e0n b\u1ed9 \u0111\u1ed9ng c\u01a1 \u0111\u1eb1ng sau m\u1ecdi l\u1ee3i \u00edch m\u00e0 c\u00e0 ph\u00ea mang l\u1ea1i: s\u1ef1 t\u1eadp trung s\u1eafc b\u00e9n h\u01a1n, s\u1ef1 n\u00e2ng \u0111\u1ee1 v\u1ec1 n\u0103ng l\u01b0\u1ee3ng th\u1ec3 ch\u1ea5t, v\u00e0 s\u1ef1 gi\u1ea3i tho\u00e1t t\u1ea1m th\u1eddi kh\u1ecfi c\u01a1n m\u1ec7t m\u1ecfi m\u00e0 b\u1ea1n c\u1ea3m th\u1ea5y sau t\u00e1ch c\u00e0 ph\u00ea \u0111\u1ea7u ti\u00ean.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kho\u1ea3ng th\u1eddi gian (timeline) quan tr\u1ecdng kh\u00f4ng k\u00e9m g\u00ec c\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng. M\u1ed9t khi b\u1ea1n u\u1ed1ng m\u1ed9t t\u00e1ch, caffeine \u0111\u1ea1t n\u1ed3ng \u0111\u1ed9 \u0111\u1ec9nh trong m\u00e1u trong kho\u1ea3ng 30\u201360 ph\u00fat. \u0110\u00f3 l\u00e0 l\u00fac t\u00e1c d\u1ee5ng m\u1ea1nh nh\u1ea5t. Nh\u01b0ng n\u00f3 kh\u00f4ng t\u1eaft ng\u1ea5m m\u1ed9t c\u00e1ch s\u1ea1ch s\u1ebd sau \u0111\u00f3.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"1536\" src=\"https:\/\/coffeefactz.com\/wp-content\/uploads\/2026\/05\/caffeine-timeline-effects-infographic.webp\" alt=\"A 3D watercolor style infographic showing the timeline and physical effects of caffeine on the body.\" class=\"wp-image-50274\" title=\"\" srcset=\"https:\/\/coffeefactz.com\/wp-content\/uploads\/2026\/05\/caffeine-timeline-effects-infographic.webp 1024w, https:\/\/coffeefactz.com\/wp-content\/uploads\/2026\/05\/caffeine-timeline-effects-infographic-200x300.webp 200w, https:\/\/coffeefactz.com\/wp-content\/uploads\/2026\/05\/caffeine-timeline-effects-infographic-683x1024.webp 683w, https:\/\/coffeefactz.com\/wp-content\/uploads\/2026\/05\/caffeine-timeline-effects-infographic-768x1152.webp 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0 n\u01a1i h\u1ea7u h\u1ebft m\u1ecdi ng\u01b0\u1eddi \u0111\u00e1nh gi\u00e1 th\u1ea5p caffeine: chu k\u1ef3 b\u00e1n r\u00e3 c\u1ee7a n\u00f3 n\u1eb1m trong kho\u1ea3ng 3\u20135 gi\u1edd. Chu k\u1ef3 b\u00e1n r\u00e3 ngh\u0129a l\u00e0 th\u1eddi gian c\u01a1 th\u1ec3 b\u1ea1n c\u1ea7n \u0111\u1ec3 lo\u1ea1i b\u1ecf m\u1ed9t n\u1eeda l\u01b0\u1ee3ng caffeine trong h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n. V\u00ec v\u1eady, n\u1ebfu b\u1ea1n n\u1ea1p 200 mg l\u00fac 2 gi\u1edd chi\u1ec1u, b\u1ea1n v\u1eabn c\u00f2n kho\u1ea3ng 100 mg l\u01b0u th\u00f4ng l\u00fac 7 gi\u1edd t\u1ed1i, v\u00e0 c\u00f2n l\u1ea1i kho\u1ea3ng 50 mg v\u00e0o l\u00fac n\u1eeda \u0111\u00eam. H\u00e0m l\u01b0\u1ee3ng caffeine c\u1ee7a t\u00e1ch c\u00e0 ph\u00ea m\u00e0 b\u1ea1n \u0111\u00e3 u\u1ed1ng nhi\u1ec1u gi\u1edd tr\u01b0\u1edbc \u0111\u00f3 v\u1eabn c\u00f2n ho\u1ea1t \u0111\u1ed9ng v\u1ec1 m\u1eb7t sinh h\u1ecdc, ngay c\u1ea3 khi b\u1ea1n kh\u00f4ng c\u00f2n c\u1ea3m th\u1ea5y t\u00e1c d\u1ee5ng c\u1ee7a n\u00f3 n\u1eefa.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00f3 ch\u00ednh x\u00e1c l\u00e0 l\u00fd do t\u1ea1i sao quy t\u1eafc b\u1ea3o v\u1ec7 gi\u1ea5c ng\u1ee7 t\u1ed3n t\u1ea1i: d\u1eebng m\u1ecdi ho\u1ea1t \u0111\u1ed9ng n\u1ea1p caffeine \u00edt nh\u1ea5t 6 gi\u1edd tr\u01b0\u1edbc khi \u0111i ng\u1ee7. Kh\u00f4ng ph\u1ea3i v\u00ec b\u1ea1n s\u1ebd c\u1ea3m th\u1ea5y b\u1ed3n ch\u1ed3n (wired) v\u00e0o gi\u1edd \u0111i ng\u1ee7, m\u00e0 v\u00ec l\u01b0\u1ee3ng caffeine d\u01b0 th\u1eeba s\u1ebd \u00e2m th\u1ea7m l\u00e0m gi\u1ea3m s\u00fat ch\u1ea5t l\u01b0\u1ee3ng gi\u1ea5c ng\u1ee7 ngay c\u1ea3 khi b\u1ea1n ch\u00ecm v\u00e0o gi\u1ea5c ng\u1ee7 m\u00e0 kh\u00f4ng g\u1eb7p kh\u00f3 kh\u0103n g\u00ec.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u1ede m\u1eb7t tr\u00e1i c\u1ee7a v\u1ea5n \u0111\u1ec1, n\u1ebfu \u0111\u1ea9y qu\u00e1 gi\u1edbi h\u1ea1n ng\u01b0\u1ee1ng c\u00e1 nh\u00e2n c\u1ee7a b\u1ea1n, th\u00ec ch\u00ednh c\u00e1i c\u01a1 ch\u1ebf ng\u0103n ch\u1eb7n th\u1ee5 th\u1ec3 v\u1ed1n gi\u00fap l\u00e0m s\u1eafc b\u00e9n s\u1ef1 t\u1eadp trung c\u1ee7a b\u1ea1n s\u1ebd b\u1eaft \u0111\u1ea7u ch\u1ed1ng l\u1ea1i b\u1ea1n. Nh\u1eefng t\u00e1c \u0111\u1ed9ng ti\u00eau c\u1ef1c c\u1ee7a vi\u1ec7c n\u1ea1p qu\u00e1 m\u1ee9c kh\u00f4ng h\u1ec1 ng\u1eabu nhi\u00ean, ch\u00fang l\u00e0 ph\u1ea3n \u1ee9ng c\u0103ng th\u1eb3ng c\u1ee7a c\u01a1 th\u1ec3 \u0111ang ch\u1ea1y m\u00e0 kh\u00f4ng c\u00f3 phanh h\u00e3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n\n<li>B\u1ed3n ch\u1ed3n v\u00e0 run r\u1ea9y: h\u1ec7 th\u1ea7n kinh b\u1ecb k\u00edch th\u00edch qu\u00e1 m\u1ee9c<\/li>\n\n\n<li>Lo \u00e2u v\u00e0 b\u1ed3n ch\u1ed3n: cortisol v\u00e0 adrenaline t\u0103ng cao m\u00e0 kh\u00f4ng c\u00f3 ch\u1ed7 x\u1ea3<\/li>\n\n\n<li>Nh\u1ecbp tim nhanh: h\u1ec7 th\u1ed1ng tim m\u1ea1ch ph\u1ea3n \u1ee9ng l\u1ea1i v\u1edbi g\u00e1nh n\u1eb7ng c\u1ee7a ch\u1ea5t k\u00edch th\u00edch<\/li>\n\n\n<li>\u0110au d\u1ea1 d\u00e0y: caffeine l\u00e0m t\u0103ng s\u1ea3n xu\u1ea5t axit d\u1ea1 d\u00e0y<\/li>\n\n\n<li>M\u1ea5t ng\u1ee7: s\u1ef1 li\u00ean k\u1ebft c\u1ee7a th\u1ee5 th\u1ec3 adenosine v\u1eabn b\u1ecb \u1ee9c ch\u1ebf cho \u0111\u1ebfn t\u1eadn \u0111\u00eam khuya<\/li>\n\n\n<p class=\"wp-block-paragraph\">&#8211;><!-- wpml:html_fragment<\/p> -->\n\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1i c\u01a1 ch\u1ebf \u0111\u00e1nh th\u1ee9c b\u1ea1n v\u00e0o bu\u1ed5i s\u00e1ng c\u0169ng ch\u00ednh l\u00e0 c\u01a1 ch\u1ebf khi\u1ebfn b\u1ea1n ph\u1ea3i tr\u00e2n tr\u00e2n nh\u00ecn l\u00ean tr\u1ea7n nh\u00e0 v\u00e0o l\u00fac n\u1eeda \u0111\u00eam. Bi\u1ebfn s\u1ed1 duy nh\u1ea5t l\u00e0 l\u01b0\u1ee3ng h\u00e0m l\u01b0\u1ee3ng caffeine c\u1ee7a c\u00e0 ph\u00ea m\u00e0 b\u1ea1n \u0111\u00e3 t\u00edch l\u0169y trong su\u1ed1t c\u1ea3 ng\u00e0y, v\u00e0 li\u1ec7u c\u01a1 th\u1ec3 b\u1ea1n \u0111\u00e3 c\u00f3 \u0111\u1ee7 th\u1eddi gian \u0111\u1ec3 \u0111\u00e0o th\u1ea3i n\u00f3 hay ch\u01b0a.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n<h2 class=\"wp-block-heading\">Gi\u1edbi H\u1ea1n Caffeine 400 mg (V\u00e0 Ai Th\u1ef1c S\u1ef1 Ph\u00f9 H\u1ee3p V\u1edbi N\u00f3)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Gi\u1edbi h\u1ea1n caffeine h\u00e0ng ng\u00e0y an to\u00e0n \u0111\u01b0\u1ee3c tr\u00edch d\u1eabn r\u1ed9ng r\u00e3i l\u00e0 400 mg cho ng\u01b0\u1eddi l\u1edbn kh\u1ecfe m\u1ea1nh, x\u1ea5p x\u1ec9 b\u1ed1n t\u00e1ch c\u00e0 ph\u00ea pha (brewed coffee) 8-ounce. Con s\u1ed1 \u0111\u00f3 kh\u00f4ng h\u1ec1 xu\u1ea5t ph\u00e1t t\u1eeb m\u1ed9t nghi\u00ean c\u1ee9u \u0111\u01a1n l\u1ebb hay m\u1ed9t t\u1ed5 ch\u1ee9c v\u1eadn \u0111\u1ed9ng h\u00e0nh lang n\u00e0o c\u1ee7a ng\u00e0nh c\u00f4ng nghi\u1ec7p c\u00e0 ph\u00ea. \u0110\u00f3 l\u00e0 m\u1ed1c m\u00e0 FDA v\u00e0 C\u01a1 quan An to\u00e0n Th\u1ef1c ph\u1ea9m Ch\u00e2u \u00c2u (EFSA) \u0111\u00e3 \u0111\u01b0a ra sau khi xem x\u00e9t nhi\u1ec1u th\u1eadp k\u1ef7 nghi\u00ean c\u1ee9u v\u1ec1 c\u00e1c t\u00e1c \u0111\u1ed9ng l\u00ean tim m\u1ea1ch, s\u1ef1 gi\u00e1n \u0111o\u1ea1n gi\u1ea5c ng\u1ee7, v\u00e0 \u0111\u1ed9c t\u00ednh c\u1ea5p t\u00ednh \u1edf ng\u01b0\u1eddi l\u1edbn kh\u1ecfe m\u1ea1nh. Hai c\u01a1 quan qu\u1ea3n l\u00fd l\u1edbn \u1edf hai b\u1edd \u0110\u1ea1i T\u00e2y D\u01b0\u01a1ng \u0111\u00e3 \u0111\u1ed9c l\u1eadp \u0111i \u0111\u1ebfn c\u00f9ng m\u1ed9t m\u1ee9c tr\u1ea7n. \u0110\u00f3 l\u00e0 \u0111i\u1ec3m g\u1ea7n nh\u1ea5t v\u1edbi s\u1ef1 \u0111\u1ed3ng thu\u1eadn khoa h\u1ecdc m\u00e0 c\u00e1c h\u01b0\u1edbng d\u1eabn dinh d\u01b0\u1ee1ng \u0111\u1ea1t \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u01b0ng c\u1ee5m t\u1eeb &#8220;ng\u01b0\u1eddi l\u1edbn kh\u1ecfe m\u1ea1nh&#8221; \u0111ang g\u00e1nh v\u00e1c r\u1ea5t nhi\u1ec1u \u00fd ngh\u0129a trong c\u00e2u n\u00f3i \u0111\u00f3.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">H\u01b0\u1edbng D\u1eabn 400 mg Xu\u1ea5t Ph\u00e1t T\u1eeb \u0110\u00e2u<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">FDA v\u00e0 EFSA \u0111\u1ec1u neo gi\u1eef h\u01b0\u1edbng d\u1eabn c\u1ee7a h\u1ecd v\u00e0o c\u00f9ng m\u1ed9t c\u01a1 s\u1edf b\u1eb1ng ch\u1ee9ng: \u1edf m\u1ee9c 400 mg m\u1ed7i ng\u00e0y, ph\u1ea7n \u0111\u00f4ng d\u00e2n s\u1ed1 ng\u01b0\u1eddi tr\u01b0\u1edfng th\u00e0nh kh\u00f4ng cho th\u1ea5y t\u00e1c \u0111\u1ed9ng b\u1ea5t l\u1ee3i nh\u1ea5t qu\u00e1n n\u00e0o. Mayo Clinic c\u0169ng l\u1eb7p l\u1ea1i ng\u01b0\u1ee1ng n\u00e0y trong h\u01b0\u1edbng d\u1eabn d\u00e0nh cho ng\u01b0\u1eddi ti\u00eau d\u00f9ng c\u1ee7a h\u1ecd. \u0110\u1ed1i v\u1edbi h\u1ea7u h\u1ebft m\u1ecdi ng\u01b0\u1eddi, \u0111i\u1ec1u n\u00e0y \u0111\u01b0\u1ee3c chuy\u1ec3n d\u1ecbch trong th\u1ef1c t\u1ebf th\u00e0nh b\u1ed1n t\u00e1ch ti\u00eau chu\u1ea9n (m\u1eb7c d\u00f9 nh\u01b0 ch\u00fang ta s\u1ebd \u0111i s\u00e2u v\u00e0o \u1edf ph\u1ea7n ti\u1ebfp theo, &#8220;t\u00e1ch ti\u00eau chu\u1ea9n&#8221; l\u00e0 m\u1ed9t \u0111\u01a1n v\u1ecb thi\u1ebfu nh\u1ea5t qu\u00e1n \u0111\u1ebfn m\u1ee9c hoang \u0111\u01b0\u1eddng, c\u00f3 th\u1ec3 mang \u00fd ngh\u0129a t\u1eeb 70 mg cho \u0111\u1ebfn h\u01a1n 200 mg t\u00f9y thu\u1ed9c v\u00e0o c\u00e1ch n\u00f3 \u0111\u01b0\u1ee3c pha ch\u1ebf).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Con s\u1ed1 n\u00e0y l\u00e0 b\u00e0i to\u00e1n \u1edf c\u1ea5p \u0111\u1ed9 qu\u1ea7n th\u1ec3, kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t \u0111\u01a1n thu\u1ed1c d\u00e0nh ri\u00eang cho c\u00e1 nh\u00e2n. H\u00e3y ngh\u0129 v\u1ec1 n\u00f3 gi\u1ed1ng nh\u01b0 c\u00e1ch b\u1ea1n ngh\u0129 v\u1ec1 gi\u1edbi h\u1ea1n t\u1ed1c \u0111\u1ed9 tr\u00ean \u0111\u01b0\u1eddng cao t\u1ed1c: n\u00f3 \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp d\u1ef1a tr\u00ean c\u00e1c \u0111i\u1ec1u ki\u1ec7n \u0111i\u1ec3n h\u00ecnh, ch\u1ee9 kh\u00f4ng ph\u1ea3i cho m\u1ecdi t\u00e0i x\u1ebf, m\u1ecdi chi\u1ebfc xe v\u00e0 m\u1ecdi t\u00ecnh hu\u1ed1ng th\u1eddi ti\u1ebft.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Khi N\u00e0o Gi\u1edbi H\u1ea1n Caffeine B\u1ecb Thay \u0110\u1ed5i \u0110\u00e1ng K\u1ec3<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Qu\u00e1 tr\u00ecnh mang thai l\u00e0m thay \u0111\u1ed5i b\u00e0i to\u00e1n n\u00e0y ngay l\u1eadp t\u1ee9c. \u0110\u1ea1i h\u1ecdc S\u1ea3n ph\u1ee5 khoa Hoa K\u1ef3 (ACOG) khuy\u1ebfn ngh\u1ecb gi\u1ea3m xu\u1ed1ng m\u1ee9c 200 mg m\u1ed7i ng\u00e0y ho\u1eb7c th\u1ea5p h\u01a1n (kh\u00f4ng ph\u1ea3i v\u00ec caffeine \u0111\u1ed9t nhi\u00ean tr\u1edf n\u00ean \u0111\u1ed9c h\u1ea1i, m\u00e0 v\u00ec thai nhi \u0111ang ph\u00e1t tri\u1ec3n kh\u00f4ng th\u1ec3 chuy\u1ec3n h\u00f3a n\u00f3 m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3, v\u00e0 vi\u1ec7c ti\u1ebfp x\u00fac k\u00e9o d\u00e0i \u1edf n\u1ed3ng \u0111\u1ed9 cao c\u00f3 li\u00ean quan \u0111\u1ebfn c\u00e1c k\u1ebft qu\u1ea3 sinh n\u1edf b\u1ea5t l\u1ee3i).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi tr\u1ebb em v\u00e0 thanh thi\u1ebfu ni\u00ean t\u1eeb 12 \u0111\u1ebfn 18 tu\u1ed5i, H\u1ecdc vi\u1ec7n T\u00e2m th\u1ea7n Tr\u1ebb em v\u00e0 V\u1ecb th\u00e0nh ni\u00ean Hoa K\u1ef3 khuy\u00ean n\u00ean gi\u1eef m\u1ee9c ti\u00eau th\u1ee5 d\u01b0\u1edbi 100 mg m\u1ed7i ng\u00e0y. H\u1ec7 th\u1ea7n kinh \u0111ang ph\u00e1t tri\u1ec3n c\u1ee7a c\u00e1c em nh\u1ea1y c\u1ea3m h\u01a1n v\u1edbi t\u00e1c d\u1ee5ng k\u00edch th\u00edch, v\u00e0 t\u00ecnh tr\u1ea1ng gi\u00e1n \u0111o\u1ea1n gi\u1ea5c ng\u1ee7 do caffeine g\u00e2y ra s\u1ebd \u0111\u1ec3 l\u1ea1i h\u1eadu qu\u1ea3 n\u1eb7ng n\u1ec1 h\u01a1n \u1edf nh\u1eefng \u0111\u1ed9 tu\u1ed5i m\u00e0 gi\u1ea5c ng\u1ee7 s\u00e2u mang t\u00ednh s\u1ed1ng c\u00f2n \u0111\u1ed1i v\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a n\u00e3o b\u1ed9.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t b\u00e0i \u0111\u00e1nh gi\u00e1 khoa h\u1ecdc \u0111\u01b0\u1ee3c xu\u1ea5t b\u1ea3n tr\u00ean t\u1ea1p ch\u00ed Frontiers in Psychiatry \u0111\u00e3 tr\u00ecnh b\u00e0y r\u00f5 nh\u1eefng ng\u01b0\u1ee1ng n\u00e0y:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">&#8220;Ng\u01b0\u1ee1ng nhi\u1ec5m \u0111\u1ed9c caffeine d\u01b0\u1eddng nh\u01b0 \u1edf m\u1ee9c kho\u1ea3ng 400 mg\/ng\u00e0y \u1edf ng\u01b0\u1eddi tr\u01b0\u1edfng th\u00e0nh kh\u1ecfe m\u1ea1nh (19 tu\u1ed5i tr\u1edf l\u00ean), 100 mg\/ng\u00e0y \u1edf thanh thi\u1ebfu ni\u00ean kh\u1ecfe m\u1ea1nh (12-18 tu\u1ed5i), v\u00e0 2.5 mg\/kg\/ng\u00e0y \u1edf tr\u1ebb em kh\u1ecfe m\u1ea1nh (d\u01b0\u1edbi 12 tu\u1ed5i).&#8221;<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea5t c\u1ee9 ai \u0111ang ph\u1ea3i qu\u1ea3n l\u00fd ch\u1ee9ng r\u1ed1i lo\u1ea1n lo \u00e2u, b\u1ec7nh tim m\u1ea1ch ho\u1eb7c \u0111ang d\u00f9ng thu\u1ed1c c\u00f3 t\u01b0\u01a1ng t\u00e1c v\u1edbi ch\u1ea5t k\u00edch th\u00edch n\u00ean coi m\u1ed1c 400 mg l\u00e0 m\u1ee9c tr\u1ea7n c\u1ea7n th\u1ea3o lu\u1eadn v\u1edbi b\u00e1c s\u0129, ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00e0 \u0111\u00e8n xanh \u0111\u1ec3 tho\u1ea3i m\u00e1i s\u1eed d\u1ee5ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u01b0\u1ee3t ra ngo\u00e0i nh\u1eefng nh\u00f3m ng\u01b0\u1eddi \u0111\u01b0\u1ee3c li\u1ec7t k\u00ea tr\u00ean, c\u00f2n c\u00f3 m\u1ed9t t\u1ea7ng l\u1edbp n\u1eefa m\u00e0 h\u1ea7u h\u1ebft c\u00e1c h\u01b0\u1edbng d\u1eabn v\u1ec1 caffeine \u0111\u1ec1u b\u1ecf qua ho\u00e0n to\u00e0n: gen di truy\u1ec1n c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ef1 bi\u1ebfn d\u1ecb trong gen CYP1A2 quy\u1ebft \u0111\u1ecbnh t\u1ed1c \u0111\u1ed9 gan c\u1ee7a b\u1ea1n ph\u00e2n gi\u1ea3i caffeine. Nh\u1eefng ng\u01b0\u1eddi chuy\u1ec3n h\u00f3a nhanh s\u1ebd \u0111\u00e0o th\u1ea3i n\u00f3 nhanh ch\u00f3ng: h\u1ecd c\u00f3 th\u1ec3 u\u1ed1ng m\u1ed9t ly espresso v\u00e0o bu\u1ed5i chi\u1ec1u v\u00e0 ng\u1ee7 ngon l\u00e0nh l\u00fac 10 gi\u1edd t\u1ed1i. Ng\u01b0\u1ee3c l\u1ea1i, nh\u1eefng ng\u01b0\u1eddi chuy\u1ec3n h\u00f3a ch\u1eadm c\u00f3 th\u1ec3 m\u1ea5t th\u1eddi gian l\u00e2u g\u1ea5p 4 l\u1ea7n \u0111\u1ec3 x\u1eed l\u00fd c\u00f9ng m\u1ed9t li\u1ec1u l\u01b0\u1ee3ng. \u0110\u1ed1i v\u1edbi h\u1ecd, 200 mg n\u1ea1p v\u00e0o bu\u1ed5i s\u00e1ng c\u00f3 th\u1ec3 v\u1eabn c\u00f2n l\u01b0u th\u00f4ng trong m\u00e1u v\u00e0o gi\u1edd \u0111i ng\u1ee7, v\u00e0 th\u1eadm ch\u00ed ch\u1ec9 c\u1ea7n m\u1ed9t l\u01b0\u1ee3ng ti\u00eau th\u1ee5 v\u1eeba ph\u1ea3i h\u00e0ng ng\u00e0y c\u0169ng c\u00f3 th\u1ec3 g\u00e2y ra t\u00ecnh tr\u1ea1ng k\u00edch th\u00edch tim m\u1ea1ch k\u00e9o d\u00e0i. H\u01b0\u1edbng d\u1eabn 400 mg ch\u01b0a bao gi\u1edd \u0111\u01b0\u1ee3c tinh ch\u1ec9nh cho nh\u00f3m ng\u01b0\u1eddi chuy\u1ec3n h\u00f3a ch\u1eadm (n\u00f3 l\u00e0 m\u1ee9c trung b\u00ecnh \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng t\u1eeb m\u1ed9t qu\u1ea7n th\u1ec3 bao g\u1ed3m c\u1ea3 hai nh\u00f3m).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ngo\u00e0i ra, c\u00f2n c\u00f3 m\u1ed9t \u0111i\u1ec3m g\u1ee3n sinh l\u00fd tinh t\u1ebf h\u01a1n: c\u00e1c ph\u01b0\u01a1ng ph\u00e1p pha ch\u1ebf kh\u00f4ng d\u00f9ng gi\u1ea5y l\u1ecdc nh\u01b0 French press v\u00e0 c\u00e0 ph\u00ea \u0111un s\u00f4i s\u1ebd \u0111\u1ec3 l\u1ea1i diterpene, c\u1ee5 th\u1ec3 l\u00e0 cafestol v\u00e0 kahweol, trong t\u00e1ch. Theo th\u1eddi gian, nh\u1eefng h\u1ee3p ch\u1ea5t n\u00e0y l\u00e0m t\u0103ng cholesterol LDL. \u0110\u00f3 ho\u00e0n to\u00e0n kh\u00f4ng ph\u1ea3i l\u00e0 t\u00e1c \u0111\u1ed9ng c\u1ee7a caffeine, nh\u01b0ng n\u00f3 l\u00e0 m\u1ed9t bi\u1ebfn s\u1ed1 s\u1ee9c kh\u1ecfe th\u1ef1c s\u1ef1 g\u1eafn li\u1ec1n v\u1edbi c\u00e1ch b\u1ea1n ti\u00eau th\u1ee5 h\u00e0m l\u01b0\u1ee3ng caffeine trong c\u00e0 ph\u00ea. T\u01b0\u01a1ng t\u1ef1, u\u1ed1ng c\u00e0 ph\u00ea v\u1edbi s\u1eefa s\u1ebd l\u00e0m ch\u1eadm \u0111\u00f4i ch\u00fat qu\u00e1 tr\u00ecnh r\u1ed7ng d\u1ea1 d\u00e0y, t\u1eeb \u0111\u00f3 c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m t\u1ed1c \u0111\u1ed9 h\u1ea5p th\u1ee5 caffeine (d\u00f9 ch\u1ec9 l\u00e0 m\u1ed9t t\u00e1c \u0111\u1ed9ng nh\u1ecf, nh\u01b0ng n\u00f3 l\u00fd gi\u1ea3i t\u1ea1i sao m\u1ed9t s\u1ed1 ng\u01b0\u1eddi c\u1ea3m th\u1ea5y u\u1ed1ng flat white s\u1ebd ng\u1ea5m t\u1eeb t\u1eeb h\u01a1n so v\u1edbi espresso \u0111en).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00e0i h\u1ecdc ch\u00e2n th\u1ef1c r\u00fat ra l\u00e0: 400 mg l\u00e0 m\u1ed9t \u0111i\u1ec3m kh\u1edfi \u0111\u1ea7u c\u00f3 gi\u00e1 tr\u1ecb, ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t t\u1edd gi\u1ea5y ph\u00e9p v\u1ea1n n\u0103ng. N\u1ebfu b\u1ea1n thu\u1ed9c nh\u00f3m \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u1eb7c bi\u1ec7t, ng\u01b0\u1eddi chuy\u1ec3n h\u00f3a ch\u1eadm, ho\u1eb7c th\u01b0\u1eddng xuy\u00ean b\u1ecb b\u1ed3n ch\u1ed3n (jitters), tim \u0111\u1eadp nhanh hay m\u1ea5t ng\u1ee7 ngay c\u1ea3 khi ti\u00eau th\u1ee5 d\u01b0\u1edbi m\u1ee9c tr\u1ea7n \u0111\u00f3, th\u00ec gi\u1edbi h\u1ea1n c\u00e1 nh\u00e2n c\u1ee7a b\u1ea1n ph\u1ea3i th\u1ea5p h\u01a1n. H\u00e3y l\u1eafng nghe c\u00e1ch c\u01a1 th\u1ec3 b\u1ea1n ph\u1ea3n \u1ee9ng v\u00e0 \u0111i\u1ec1u ch\u1ec9nh t\u1eeb \u0111\u00f3.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n<h2 class=\"wp-block-heading\">4 Y\u1ebfu T\u1ed1 \u1ea8n Gi\u1ea5u Ki\u1ec3m So\u00e1t L\u01b0\u1ee3ng Caffeine Trong T\u00e1ch C\u1ee7a B\u1ea1n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Qu\u00e1 tr\u00ecnh chi\u1ebft xu\u1ea5t caffeine t\u1eeb c\u00e0 ph\u00ea kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t con s\u1ed1 c\u1ed1 \u0111\u1ecbnh: n\u00f3 l\u00e0 k\u1ebft qu\u1ea3 \u0111\u1ea7u ra c\u1ee7a b\u1ed1n bi\u1ebfn s\u1ed1 ho\u1ea1t \u0111\u1ed9ng c\u00f9ng nhau, v\u00e0 h\u1ea7u h\u1ebft m\u1ecdi ng\u01b0\u1eddi ch\u1ec9 th\u01b0\u1eddng ngh\u0129 \u0111\u1ebfn m\u1ed9t trong s\u1ed1 ch\u00fang. Gi\u1ed1ng h\u1ea1t, ph\u01b0\u01a1ng ph\u00e1p pha ch\u1ebf, th\u1eddi gian ti\u1ebfp x\u00fac, k\u00edch c\u1ee1 kh\u1ea9u ph\u1ea7n v\u00e0 m\u1ee9c \u0111\u1ed9 rang \u0111\u1ec1u c\u00f9ng nhau \u0111\u1ecbnh h\u00ecnh nh\u1eefng g\u00ec n\u1eb1m trong c\u1ed1c c\u1ee7a b\u1ea1n. Ch\u1ec9 c\u1ea7n hi\u1ec3u sai m\u1ed9t y\u1ebfu t\u1ed1 trong m\u00f4 h\u00ecnh suy ngh\u0129 \u0111\u00f3, b\u1ea1n s\u1ebd \u0111\u1ecdc sai th\u00f4ng s\u1ed1 c\u1ee7a m\u1ecdi t\u00e1ch c\u00e0 ph\u00ea.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Gi\u1ed1ng H\u1ea1t, Th\u1eddi Gian Ti\u1ebfp X\u00fac v\u00e0 Ph\u01b0\u01a1ng Ph\u00e1p Pha Ch\u1ebf<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Gi\u1ed1ng h\u1ea1t l\u00e0 \u0111i\u1ec3m kh\u1edfi \u0111\u1ea7u \u0111\u1ed1i v\u1edbi h\u00e0m l\u01b0\u1ee3ng caffeine c\u1ee7a c\u00e0 ph\u00ea b\u1edfi v\u00ec n\u00f3 thi\u1ebft l\u1eadp m\u1ee9c tr\u1ea7n ngay t\u1eeb tr\u01b0\u1edbc khi n\u01b0\u1edbc ch\u1ea1m v\u00e0o b\u1ed9t c\u00e0 ph\u00ea. H\u1ea1t Arabica (lo\u1ea1i \u0111\u01b0\u1ee3c d\u00f9ng trong h\u1ea7u h\u1ebft c\u00e1c lo\u1ea1i c\u00e0 ph\u00ea \u0111\u1eb7c s\u1ea3n v\u00e0 c\u00e0 ph\u00ea t\u1ea1p h\u00f3a) mang kho\u1ea3ng 1.2% caffeine t\u00ednh theo tr\u1ecdng l\u01b0\u1ee3ng. Trong khi \u0111\u00f3 h\u1ea1t Robusta \u0111\u1ea1t m\u1ee9c kho\u1ea3ng 2.2%, g\u1ea7n nh\u01b0 g\u1ea5p \u0111\u00f4i. \u0110\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t kho\u1ea3ng c\u00e1ch nh\u1ecf. N\u1ebfu h\u1ed7n h\u1ee3p c\u00e0 ph\u00ea c\u1ee7a b\u1ea1n thi\u00ean v\u1ec1 Robusta (r\u1ea5t ph\u1ed5 bi\u1ebfn trong c\u00e1c lo\u1ea1i blend pha espresso ki\u1ec3u \u00dd v\u00e0 c\u00e1c lo\u1ea1i c\u00e0 ph\u00ea \u0111\u00f3ng lon \u0111\u1ea1i tr\u00e0), b\u1ea1n \u0111\u00e3 b\u1eaft \u0111\u1ea7u t\u1eeb m\u1ed9t m\u1ee9c n\u1ec1n cao h\u01a1n tr\u01b0\u1edbc khi qu\u00e1 tr\u00ecnh pha ch\u1ebf b\u1eaft \u0111\u1ea7u.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1eeb \u0111\u00f3, qu\u00e1 tr\u00ecnh chi\u1ebft xu\u1ea5t caffeine \u0111\u01b0\u1ee3c th\u00fac \u0111\u1ea9y b\u1edfi kho\u1ea3ng th\u1eddi gian n\u01b0\u1edbc l\u01b0u l\u1ea1i tr\u00ean b\u1ed9t c\u00e0 ph\u00ea. Th\u1eddi gian ti\u1ebfp x\u00fac c\u00e0ng l\u00e2u, n\u01b0\u1edbc c\u00e0ng k\u00e9o ra nhi\u1ec1u caffeine. B\u00ecnh French press c\u1ea7n ng\u00e2m kho\u1ea3ng 4 ph\u00fat. Cold brew ng\u00e2m t\u1eeb 12 \u0111\u1ebfn 24 gi\u1edd. C\u1ea3 hai ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u1ec1u chi\u1ebft xu\u1ea5t ra nhi\u1ec1u caffeine tr\u00ean m\u1ed7i gram b\u1ed9t c\u00e0 ph\u00ea h\u01a1n so v\u1edbi m\u1ed9t c\u00fa n\u00e9n espresso nhanh g\u1ecdn, n\u01a1i n\u01b0\u1edbc \u0111i qua ch\u1ec9 trong v\u00f2ng 25 \u0111\u1ebfn 30 gi\u00e2y.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Video: S\u1ef1 Kh\u00e1c Bi\u1ec7t V\u1ec1 Chi\u1ebft Xu\u1ea5t Gi\u1eefa French Press v\u00e0 Espresso &#8211; Ph\u00e2n T\u00edch Caffeine<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"Which Brew Method Has the Most Caffeine?\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/J700sLKkn4M?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y ch\u00ednh l\u00e0 l\u00fac s\u1ef1 nh\u1ea7m l\u1eabn b\u1eaft \u0111\u1ea7u len l\u1ecfi v\u00e0o. Espresso mang l\u1ea1i c\u1ea3m gi\u00e1c m\u1ea1nh h\u01a1n, v\u00e0 qu\u1ea3 th\u1ef1c l\u00e0 v\u1eady, n\u1ebfu x\u00e9t v\u1ec1 \u0111\u1ed9 \u0111\u1eadm \u0111\u1eb7c. Nh\u01b0ng m\u1ed9t shot \u0111\u01a1n ch\u1ec9 chi\u1ebfm kho\u1ea3ng 1 \u0111\u1ebfn 1.5 oz ch\u1ea5t l\u1ecfng. Trong khi m\u1ed9t t\u00e1ch French press l\u1ea1i l\u00ean t\u1edbi 8 \u0111\u1ebfn 12 oz. Th\u1eddi gian ti\u1ebfp x\u00fac ng\u1eafn c\u1ee7a espresso chi\u1ebft xu\u1ea5t \u00edt caffeine h\u01a1n tr\u00ean m\u1ed7i \u0111\u01a1n v\u1ecb n\u01b0\u1edbc, nh\u01b0ng h\u1ea7u h\u1ebft m\u1ecdi ng\u01b0\u1eddi kh\u00f4ng ch\u1ec9 u\u1ed1ng m\u1ed9t shot r\u1ed3i th\u00f4i. K\u00edch c\u1ee1 kh\u1ea9u ph\u1ea7n ch\u00ednh l\u00e0 bi\u1ebfn s\u1ed1 l\u00e0m \u0111\u1ea3o ng\u01b0\u1ee3c m\u1ecdi \u1ea5n t\u01b0\u1ee3ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00fang nh\u01b0 Hi\u1ec7p h\u1ed9i C\u00e0 ph\u00ea Qu\u1ed1c gia \u0111\u00e3 nh\u1eadn \u0111\u1ecbnh:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">&#8220;Trong c\u00e0 ph\u00ea, h\u00e0m l\u01b0\u1ee3ng caffeine ph\u1ee5 thu\u1ed9c v\u00e0o lo\u1ea1i h\u1ea1t, m\u1ee9c \u0111\u1ed9 rang, ph\u01b0\u01a1ng ph\u00e1p pha ch\u1ebf v\u00e0 k\u00edch c\u1ee1 kh\u1ea9u ph\u1ea7n.&#8221;<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00f3 l\u00e0 b\u1ed1n bi\u1ebfn s\u1ed1 \u0111\u01b0\u1ee3c li\u1ec7t k\u00ea trong c\u00f9ng m\u1ed9t c\u00e2u, v\u00e0 ch\u00fang t\u01b0\u01a1ng t\u00e1c v\u1edbi nhau. M\u1ed9t ly cold brew c\u1ee1 l\u1edbn pha b\u1eb1ng h\u1ea1t Robusta c\u00f3 l\u01b0\u1ee3ng caffeine ho\u00e0n to\u00e0n kh\u00e1c so v\u1edbi m\u1ed9t shot espresso Arabica \u0111\u01a1n l\u1ebb, m\u1eb7c d\u00f9 c\u1ea3 hai \u0111\u1ec1u mang c\u1ea3m gi\u00e1c l\u00e0 &#8220;m\u1ed9t ly c\u00e0 ph\u00ea.&#8221;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">L\u1ea7m T\u01b0\u1edfng V\u1ec1 M\u1ee9c \u0110\u1ed9 Rang V\u00e0 C\u00e1ch Gi\u1ea3i Quy\u1ebft Th\u1ef1c T\u1ebf<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ee9c \u0111\u1ed9 rang l\u00e0 bi\u1ebfn s\u1ed1 b\u1ecb hi\u1ec3u sai nhi\u1ec1u nh\u1ea5t trong c\u00e1c cu\u1ed9c tranh lu\u1eadn v\u1ec1 caffeine, v\u00e0 s\u1ef1 hi\u1ec3u l\u1ea7m \u0111\u00f3 \u0111\u00e3 b\u1eaft r\u1ec5 r\u1ea5t s\u00e2u. Ni\u1ec1m tin ph\u1ed5 bi\u1ebfn l\u00e0: c\u00e0 ph\u00ea rang \u0111\u1eadm (dark roast) ch\u1ee9a \u00edt caffeine h\u01a1n \u0111\u00e1ng k\u1ec3 v\u00ec th\u1eddi gian rang l\u00e2u h\u01a1n, n\u00f3ng h\u01a1n s\u1ebd \u0111\u1ed1t ch\u00e1y ch\u1ea5t n\u00e0y. N\u00f3 \u0111\u01b0\u1ee3c l\u1eb7p l\u1ea1i th\u01b0\u1eddng xuy\u00ean \u0111\u1ebfn m\u1ee9c h\u1ea7u h\u1ebft nh\u1eefng ng\u01b0\u1eddi u\u1ed1ng c\u00e0 ph\u00ea \u0111\u1ec1u coi \u0111\u00f3 l\u00e0 ch\u00e2n l\u00fd.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u01b0ng t\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc l\u1ea1i kh\u00f4ng \u0111\u1ed3ng \u00fd. Caffeine th\u0103ng hoa \u1edf nhi\u1ec7t \u0111\u1ed9 178\u00b0C, nh\u01b0ng n\u00f3 kh\u00f4ng tr\u1ea3i qua qu\u00e1 tr\u00ecnh ph\u00e2n h\u1ee7y nhi\u1ec7t \u0111\u00e1ng k\u1ec3 \u1edf m\u1ee9c nhi\u1ec7t 180-240\u00b0C d\u00f9ng \u0111\u1ec3 rang c\u00e0 ph\u00ea. Ph\u00e2n t\u1eed n\u00e0y g\u1ea7n nh\u01b0 s\u1ed1ng s\u00f3t nguy\u00ean v\u1eb9n r\u1eddi kh\u1ecfi m\u00e1y rang. C\u00e0 ph\u00ea rang \u0111\u1eadm kh\u00f4ng m\u1ea5t \u0111i l\u01b0\u1ee3ng l\u1edbn caffeine v\u00ec t\u00e1c \u0111\u1ed9ng c\u1ee7a nhi\u1ec7t, \u0111\u01a1n gi\u1ea3n l\u00e0 nhi\u1ec7t \u0111\u1ed9 g\u1ea7n nh\u01b0 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng g\u00ec \u0111\u1ebfn n\u00f3 c\u1ea3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1eady l\u1ea7m t\u01b0\u1edfng n\u00e0y b\u1eaft ngu\u1ed3n t\u1eeb \u0111\u00e2u? C\u00e2u tr\u1ea3 l\u1eddi l\u00e0 M\u1eadt \u0111\u1ed9. Khi h\u1ea1t c\u00e0 ph\u00ea \u0111\u01b0\u1ee3c rang l\u00e2u h\u01a1n, ch\u00fang n\u1edf ra v\u00e0 m\u1ea5t \u0111i \u0111\u1ed9 \u1ea9m. H\u1ea1t rang \u0111\u1eadm s\u1ebd to h\u01a1n v\u1ec1 m\u1eb7t v\u1eadt l\u00fd nh\u01b0ng l\u1ea1i nh\u1eb9 h\u01a1n (\u00edt \u0111\u1eb7c h\u01a1n) so v\u1edbi h\u1ea1t rang nh\u1ea1t. Khi b\u1ea1n \u0111o l\u01b0\u1eddng b\u1eb1ng th\u1ec3 t\u00edch (b\u1eb1ng mu\u1ed7ng, b\u1eb1ng v\u00e1 \u0111ong), b\u1ea1n \u0111ang x\u00fac \u0111\u01b0\u1ee3c kh\u1ed1i l\u01b0\u1ee3ng h\u1ea1t rang \u0111\u1eadm \u00edt h\u01a1n so v\u1edbi h\u1ea1t rang nh\u1ea1t. Kh\u1ed1i l\u01b0\u1ee3ng \u00edt h\u01a1n \u0111\u1ed3ng ngh\u0129a v\u1edbi vi\u1ec7c l\u01b0\u1ee3ng caffeine n\u1ea1p v\u00e0o t\u00e1ch c\u1ee7a b\u1ea1n s\u1ebd \u00edt h\u01a1n. S\u1ef1 ch\u00eanh l\u1ec7ch th\u1ec3 t\u00edch \u0111\u00f3 c\u00f3 th\u1ec3 gi\u1ea3i th\u00edch cho vi\u1ec7c m\u1ed9t mu\u1ed7ng c\u00e0 ph\u00ea rang \u0111\u1eadm ch\u1ee9a \u00edt h\u01a1n kho\u1ea3ng 15-20% caffeine so v\u1edbi m\u1ed9t mu\u1ed7ng c\u00e0 ph\u00ea rang nh\u1ea1t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t s\u1ef1 bi\u1ebfn \u0111\u1ed5i h\u00f3a h\u1ecdc. N\u00f3 l\u00e0 m\u1ed9t s\u1ef1 \u0111\u00e1nh l\u1eeba v\u1ec1 ph\u00e9p \u0111o l\u01b0\u1eddng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Khi b\u1ea1n d\u00f9ng c\u00e2n \u0111\u1ec3 \u0111ong c\u00e0 ph\u00ea thay v\u00ec d\u00f9ng mu\u1ed7ng x\u00fac, s\u1ef1 ch\u00eanh l\u1ec7ch caffeine gi\u1eefa rang nh\u1ea1t v\u00e0 rang \u0111\u1eadm tr\u1edf n\u00ean kh\u00f4ng \u0111\u00e1ng k\u1ec3. C\u00f9ng m\u1ed9t s\u1ed1 gram \u0111\u1ea7u v\u00e0o s\u1ebd cho ra l\u01b0\u1ee3ng caffeine x\u1ea5p x\u1ec9 nhau, b\u1ea5t k\u1ec3 m\u00e0u s\u1eafc c\u1ee7a m\u1ebb rang.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">caffeine trong th\u1eddi k\u1ef3 mang thai<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1ch kh\u1eafc ph\u1ee5c th\u1ef1c t\u1ebf r\u1ea5t \u0111\u01a1n gi\u1ea3n: h\u00e3y pha ch\u1ebf theo tr\u1ecdng l\u01b0\u1ee3ng (weight) thay v\u00ec theo mu\u1ed7ng (scoop). M\u1ed9t chi\u1ebfc c\u00e2n ti\u1ec3u ly nh\u00e0 b\u1ebfp s\u1ebd lo\u1ea1i b\u1ecf ho\u00e0n to\u00e0n bi\u1ebfn s\u1ed1 v\u1ec1 m\u1eadt \u0111\u1ed9 v\u00e0 mang \u0111\u1ebfn cho b\u1ea1n m\u1ed9t l\u01b0\u1ee3ng caffeine nh\u1ea5t qu\u00e1n, d\u1ec5 d\u1ef1 \u0111o\u00e1n. Vi\u1ec7c l\u1ef1a ch\u1ecdn m\u1ee9c \u0111\u1ed9 rang c\u1ee7a b\u1ea1n n\u00ean xu\u1ea5t ph\u00e1t t\u1eeb s\u1edf th\u00edch h\u01b0\u01a1ng v\u1ecb: \u0111\u1eb7c t\u00ednh \u0111\u1eadm \u0111\u00e0, \u00edt axit c\u1ee7a c\u00e0 ph\u00ea rang \u0111\u1eadm so v\u1edbi h\u01b0\u01a1ng v\u1ecb t\u01b0\u01a1i s\u00e1ng, ph\u1ee9c h\u1ee3p c\u1ee7a c\u00e0 ph\u00ea rang nh\u1ea1t. D\u00f9ng m\u1ee9c \u0111\u1ed9 rang nh\u01b0 m\u1ed9t chi\u1ebfn l\u01b0\u1ee3c \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh caffeine m\u00e0 kh\u00f4ng c\u00f3 c\u00e2n th\u00ec h\u1ea7u h\u1ebft ch\u1ec9 l\u00e0 \u0111o\u00e1n m\u00f2.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n<h2 class=\"wp-block-heading\">H\u00e0m L\u01b0\u1ee3ng Caffeine Theo T\u1eebng Lo\u1ea1i C\u00e0 Ph\u00ea: B\u1ea3ng Th\u00f4ng S\u1ed1 \u0110\u1ea7y \u0110\u1ee7<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ef1 bi\u1ebfn thi\u00ean \u0111i\u00ean r\u1ed3 c\u1ee7a h\u00e0m l\u01b0\u1ee3ng caffeine trong c\u00e0 ph\u00ea ch\u00ednh l\u00e0 l\u00fd do khi\u1ebfn hai ng\u01b0\u1eddi c\u00f3 th\u1ec3 c\u00f9ng u\u1ed1ng &#8220;m\u1ed9t t\u00e1ch&#8221; nh\u01b0ng l\u1ea1i c\u1ea3m th\u1ea5y ho\u00e0n to\u00e0n kh\u00e1c bi\u1ec7t. M\u00f3n th\u1ee9c u\u1ed1ng tr\u00ean tay b\u1ea1n c\u00f3 th\u1ec3 mang t\u1edbi 70 mg ho\u1eb7c 200 mg t\u00f9y thu\u1ed9c v\u00e0o n\u00f3 l\u00e0 g\u00ec v\u00e0 \u0111\u1ebfn t\u1eeb \u0111\u00e2u. Tr\u01b0\u1edbc khi b\u1ea1n c\u00f3 th\u1ec3 qu\u1ea3n l\u00fd l\u01b0\u1ee3ng n\u1ea1p v\u00e0o h\u00e0ng ng\u00e0y, b\u1ea1n c\u1ea7n m\u1ed9t \u0111i\u1ec3m tham chi\u1ebfu \u0111\u00e1ng tin c\u1eady, v\u00e0 n\u00f3 \u1edf ngay \u0111\u00e2y.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead>\u0110\u1ed3 U\u1ed1ng<\/th><th>K\u00edch C\u1ee1 Kh\u1ea9u Ph\u1ea7n<\/th><th>Bi\u00ean \u0110\u1ed9 Caffeine<\/th><th>M\u1ee9c Trung B\u00ecnh<\/th><\/tr><\/thead><tbody><tr><td>C\u00e0 ph\u00ea nh\u1ecf gi\u1ecdt (Drip coffee)<\/td><td>8 oz<\/td><td>70-140 mg<\/td><td>~95 mg<\/td><\/tr><tr><td>Espresso (shot \u0111\u01a1n)<\/td><td>1 oz<\/td><td>60-65 mg<\/td><td>~63 mg<\/td><\/tr><tr><td>Espresso (shot \u0111\u00f4i\/double shot)<\/td><td>2 oz<\/td><td>120-130 mg<\/td><td>~125 mg<\/td><\/tr><tr><td>Cold brew<\/td><td>8 oz<\/td><td>150-200 mg<\/td><td>~175 mg<\/td><\/tr><tr><td>C\u00e0 ph\u00ea h\u00f2a tan<\/td><td>8 oz<\/td><td>30-90 mg<\/td><td>~60 mg<\/td><\/tr><tr><td>C\u00e0 ph\u00ea decaf<\/td><td>8 oz<\/td><td>2-7 mg<\/td><td>~5 mg<\/td><\/tr><tr><td>Tr\u00e0 \u0111en<\/td><td>8 oz<\/td><td>40-70 mg<\/td><td>~55 mg<\/td><\/tr><tr><td>Tr\u00e0 xanh<\/td><td>8 oz<\/td><td>20-45 mg<\/td><td>~30 mg<\/td><\/tr><tr><td>Cola (Coca-Cola)<\/td><td>12 oz<\/td><td>34 mg<\/td><td>34 mg<\/td><\/tr><tr><td>N\u01b0\u1edbc t\u0103ng l\u1ef1c (Monster)<\/td><td>16 oz<\/td><td>160 mg<\/td><td>160 mg<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1eefng con s\u1ed1 n\u00e0y b\u1eaft ngu\u1ed3n t\u1eeb m\u1ee9c trung b\u00ecnh trong ph\u00f2ng th\u00ed nghi\u1ec7m. Ch\u00fang l\u00e0 m\u1ed9t chi\u1ebfc la b\u00e0n \u0111\u00e1ng tin c\u1eady \u0111\u1ec3 t\u00ednh t\u1ed5ng l\u01b0\u1ee3ng n\u1ea1p v\u00e0o h\u00e0ng ng\u00e0y, ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00e0 th\u00f4ng s\u1ed1 \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn in tr\u00ean bao b\u00ec ho\u1eb7c chai l\u1ecd c\u1ee5 th\u1ec3 c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">T\u1ea1i Sao M\u1ecdi B\u1ea3ng Bi\u1ec3u \u0110\u1ec1u L\u00e0 M\u1ed9t Bi\u00ean \u0110\u1ed9, Ch\u1ee9 Kh\u00f4ng Ph\u1ea3i M\u1ed9t Con S\u1ed1 Ch\u00ednh X\u00e1c<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t nghi\u00ean c\u1ee9u v\u1ec1 ch\u1ebf \u0111\u1ed9 \u0103n u\u1ed1ng t\u1ea1i Ch\u00e2u \u00c2u \u0111\u00e3 \u0111\u01b0\u1ee3c b\u00ecnh duy\u1ec7t (peer-reviewed) \u0111\u00e3 l\u00e0m r\u00f5 s\u1ef1 x\u00ea d\u1ecbch n\u00e0y:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">&#8220;V\u00ed d\u1ee5, m\u1ed9t t\u00e1ch c\u00e0 ph\u00ea \u1edf \u00dd (n\u01a1i m\u1ed9t t\u00e1ch espresso 60 ml ch\u1ee9a kho\u1ea3ng 80 mg caffeine) kh\u00f4ng th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u1ed1i chi\u1ebfu ho\u00e0n to\u00e0n v\u1edbi m\u1ed9t t\u00e1ch c\u00e0 ph\u00ea \u1edf \u0110an M\u1ea1ch, n\u01a1i m\u1ed9t t\u00e1ch c\u00e0 ph\u00ea phin 200 ml ch\u1ee9a kho\u1ea3ng 90 mg caffeine.&#8221; &#8211; Ti\u00eau th\u1ee5 C\u00e0 ph\u00ea, Tr\u00e0 v\u00e0 S\u1ef1 \u0110\u00f3ng G\u00f3p T\u1eeb C\u00e1c Th\u00e0nh Ph\u1ea7n B\u1ed5 Sung<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">Logic t\u01b0\u01a1ng t\u1ef1 c\u0169ng \u00e1p d\u1ee5ng ngay trong c\u00f9ng m\u1ed9t qu\u1ed1c gia. T\u1ed5 ch\u1ee9c Consumer Reports \u0111\u00e3 ti\u1ebfn h\u00e0nh th\u1eed nghi\u1ec7m nhi\u1ec1u th\u01b0\u01a1ng hi\u1ec7u c\u00e0 ph\u00ea b\u1ed9t v\u00e0 c\u00e0 ph\u00ea mang \u0111i trong \u0111i\u1ec1u ki\u1ec7n \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t v\u00e0 ph\u00e1t hi\u1ec7n ra r\u1eb1ng: h\u00e0m l\u01b0\u1ee3ng caffeine cho c\u00f9ng m\u1ed9t ly pha ch\u1ebf c\u1ee1 &#8220;v\u1eeba&#8221; (medium) c\u00f3 th\u1ec3 ch\u00eanh l\u1ec7ch 100 mg ho\u1eb7c h\u01a1n gi\u1eefa c\u00e1c th\u01b0\u01a1ng hi\u1ec7u s\u1eed d\u1ee5ng c\u00f9ng m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p pha. M\u1ee9c \u0111\u1ed9 rang, k\u00edch c\u1ee1 xay, ngu\u1ed3n g\u1ed1c h\u1ea1t, nhi\u1ec7t \u0111\u1ed9 n\u01b0\u1edbc, ch\u1ec9 c\u1ea7n m\u1ed9t trong s\u1ed1 c\u00e1c bi\u1ebfn s\u1ed1 \u0111\u00f3 thay \u0111\u1ed5i c\u0169ng l\u00e0m d\u1ecbch chuy\u1ec3n con s\u1ed1. H\u1ea7u h\u1ebft c\u00e1c ngu\u1ed3n t\u00e0i li\u1ec7u \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 \u0111\u1ec1u kh\u00f4ng b\u00e1o c\u00e1o s\u1ef1 ch\u00eanh l\u1ec7ch gi\u1eefa c\u00e1c m\u1ebb rang hay \u0111\u1ed9 l\u1ec7ch chu\u1ea9n, \u0111i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 kh\u00f4ng c\u00f3 b\u1ea5t k\u1ef3 con s\u1ed1 \u0111\u01a1n l\u1ebb n\u00e0o n\u00ean \u0111\u01b0\u1ee3c coi l\u00e0 ch\u00e2n l\u00fd tuy\u1ec7t \u0111\u1ed1i.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">N\u01a1i Starbucks v\u00e0 Cold Brew Ph\u00e1 V\u1ee1 M\u1ecdi Chu\u1ea9n M\u1ef1c B\u1ea3ng Bi\u1ec3u<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea3ng tr\u00ean s\u1eed d\u1ee5ng quy chu\u1ea9n 8-oz l\u00e0m th\u01b0\u1edbc \u0111o, v\u00e0 \u0111\u00f3 l\u00e0 l\u00fac m\u1ecdi th\u1ee9 tr\u00f4ng c\u00f3 v\u1ebb ng\u0103n n\u1eafp m\u1ed9t c\u00e1ch gi\u1ea3 t\u1ea1o. K\u00edch c\u1ee1 kh\u1ea9u ph\u1ea7n trong th\u1ebf gi\u1edbi th\u1ef1c kh\u00f4ng h\u1ec1 tu\u00e2n theo tr\u1eadt t\u1ef1 \u0111\u00f3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">caffeine trong chocolate<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t ly c\u00e0 ph\u00ea pha n\u00f3ng c\u1ee1 Venti c\u1ee7a Starbucks c\u00f3 th\u1ec3 t\u00edch 20 oz, l\u1edbn h\u01a1n g\u1ea5p \u0111\u00f4i k\u00edch c\u1ee1 quy chu\u1ea9n. D\u1ef1a theo c\u00e1c con s\u1ed1 do ch\u00ednh Starbucks c\u00f4ng b\u1ed1, m\u1ed9t ly \u0111\u00f3 \u0111\u00e3 \u0111\u1ea1t m\u1ee9c 390 \u0111\u1ebfn 490 mg caffeine, \u0111i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 m\u1ed9t ly c\u00e0 ph\u00ea bu\u1ed5i s\u00e1ng c\u00f3 th\u1ec3 \u0111\u00e3 v\u01b0\u1ee3t qua m\u1ee9c tr\u1ea7n 400 mg m\u1ed7i ng\u00e0y ngay tr\u01b0\u1edbc c\u1ea3 khi b\u1ea1n k\u1ecbp \u0103n s\u00e1ng ho\u1eb7c t\u00ecm ki\u1ebfm th\u00eam ch\u00fat n\u0103ng l\u01b0\u1ee3ng v\u00e0o bu\u1ed5i chi\u1ec1u.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Cold brew<\/strong> deserves its own flag too. It looks like regular coffee, but the long steeping process (typically 12 to 24 hours) extracts significantly more caffeine per ounce than hot brewing does. An 8-oz cold brew at 150-200 mg already outpaces two shots of espresso. Many commercial cold brew bottles are 12 or 16 oz, which pushes the number higher still.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">S\u1ef1 Th\u1eadt V\u1ec1 C\u00e0 Ph\u00ea Decaf (Kh\u1eed Caffeine)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e0 ph\u00ea decaf is low-caffeine, not caffeine-free. At 2-7 mg per 8-oz cup, a single serving won&#8217;t move most people&#8217;s needle, but if you&#8217;re pregnant, highly caffeine-sensitive, or managing a medical condition that requires strict avoidance, those trace amounts add up across three or four cups. For anyone in that category, &#8220;decaf&#8221; needs to be counted, not dismissed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Bi\u00ean \u0111\u1ed9 \u1edf b\u1ea3ng tr\u00ean cung c\u1ea5p cho b\u1ea1n m\u1ecdi th\u1ee9 c\u1ea7n thi\u1ebft \u0111\u1ec3 \u01b0\u1edbc t\u00ednh l\u01b0\u1ee3ng n\u1ea1p v\u00e0o c\u01a1 th\u1ec3. B\u01b0\u1edbc ti\u1ebfp theo l\u00e0 c\u1ed9ng d\u1ed3n nh\u1eefng con s\u1ed1 \u0111\u00f3 v\u00e0o th\u1ef1c t\u1ebf l\u1ecbch tr\u00ecnh c\u1ea3 ng\u00e0y c\u1ee7a b\u1ea1n &#8211; ly c\u00e0 ph\u00ea nh\u1ecf gi\u1ecdt bu\u1ed5i s\u00e1ng, ly latte bu\u1ed5i chi\u1ec1u, t\u00e1ch espresso sau b\u1eefa t\u1ed1i &#8211; v\u00e0 \u0111\u1ed1i chi\u1ebfu xem b\u1ea1n \u0111ang \u1edf \u0111\u00e2u so v\u1edbi gi\u1edbi h\u1ea1n c\u1ee7a c\u00e1 nh\u00e2n m\u00ecnh.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n<h2 class=\"wp-block-heading\">C\u00e1ch T\u00ednh To\u00e1n L\u01b0\u1ee3ng Caffeine N\u1ea1p V\u00e0o H\u00e0ng Ng\u00e0y C\u1ee7a B\u1ea1n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Bi\u1ebft \u0111\u01b0\u1ee3c h\u00e0m l\u01b0\u1ee3ng caffeine c\u1ee7a m\u1ed9t m\u00f3n \u0111\u1ed3 u\u1ed1ng m\u1edbi ch\u1ec9 l\u00e0 b\u01b0\u1edbc kh\u1edfi \u0111\u1ea7u, nh\u01b0ng c\u01a1 th\u1ec3 b\u1ea1n kh\u00f4ng t\u1ef1 &#8220;nh\u1ea5n n\u00fat reset&#8221; gi\u1eefa m\u1ed7i ly. \u0110i\u1ec1u quan tr\u1ecdng l\u00e0 con s\u1ed1 b\u1ea1n ch\u1ea1m t\u1edbi v\u00e0o cu\u1ed1i ng\u00e0y, v\u00e0 t\u1ed5ng s\u1ed1 c\u1ed9ng d\u1ed3n \u0111\u00f3 l\u1ea1i l\u00e0 th\u1ee9 m\u00e0 h\u1ea7u h\u1ebft m\u1ecdi ng\u01b0\u1eddi kh\u00f4ng bao gi\u1edd th\u1ef1c s\u1ef1 ng\u1ed3i t\u00ednh to\u00e1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0 l\u1ed7 h\u1ed5ng c\u1ea7n \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u00edch danh: c\u00e1c h\u01b0\u1edbng d\u1eabn v\u1ec1 h\u00e0m l\u01b0\u1ee3ng c\u00e0 ph\u00ea nhan nh\u1ea3n \u1edf kh\u1eafp m\u1ecdi n\u01a1i, nh\u01b0ng h\u1ea7u nh\u01b0 kh\u00f4ng c\u00f3 t\u00e0i li\u1ec7u n\u00e0o ch\u1ec9 cho b\u1ea1n c\u00e1ch gom nh\u1eefng con s\u1ed1 \u0111\u00f3 l\u1ea1i th\u00e0nh m\u1ed9t b\u1ee9c tranh to\u00e0n c\u1ea3nh trong ng\u00e0y. B\u1ea1n b\u1ecb b\u1ecf l\u1ea1i v\u1edbi m\u1ed9t m\u1edb th\u00f4ng tin r\u1eddi r\u1ea1c v\u00e0 kh\u00f4ng c\u00f3 ph\u01b0\u01a1ng ph\u00e1p n\u00e0o \u0111\u1ec3 bi\u1ebfn ch\u00fang th\u00e0nh b\u00e0i ki\u1ec3m tra r\u1ee7i ro c\u00e1 nh\u00e2n. \u0110\u00f3 ch\u00ednh x\u00e1c l\u00e0 v\u1ea5n \u0111\u1ec1 m\u00e0 ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ebfm t\u1ed5ng caffeine (caffeine tally method) s\u1ebd gi\u1ea3i quy\u1ebft.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Ph\u01b0\u01a1ng Ph\u00e1p \u0110\u1ebfm T\u1ed5ng Caffeine 3 B\u01b0\u1edbc<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u1ee7 \u0111\u01a1n gi\u1ea3n \u0111\u1ec3 b\u1ea1n c\u00f3 th\u1ec3 t\u1ef1 t\u00ednh nh\u1ea9m trong \u0111\u1ea7u, nh\u01b0ng c\u0169ng \u0111\u1ee7 c\u1ee5 th\u1ec3 \u0111\u1ec3 mang l\u1ea1i cho b\u1ea1n m\u1ed9t con s\u1ed1 th\u1ef1c t\u1ebf.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u01b0\u1edbng d\u1eabn \u0110\u1ecbnh L\u01b0\u1ee3ng Caffeine<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u01b0\u1edbc 1 &#8211; Li\u1ec7t k\u00ea t\u1eebng m\u00f3n \u0111\u1ed3 u\u1ed1ng ch\u1ee9a caffeine b\u1ea1n \u0111\u00e3 u\u1ed1ng h\u00f4m nay, k\u00e8m theo k\u00edch c\u1ee1 v\u00e0 ph\u00e2n lo\u1ea1i. \u0110\u1eebng ch\u1ec9 \u0111\u1ebfm s\u1ed1 t\u00e1ch. H\u00e3y \u0111\u1ebfm s\u1ed1 ounce (th\u1ec3 t\u00edch), v\u00e0 ghi ch\u00fa xem n\u00f3 l\u00e0 c\u00e0 ph\u00ea nh\u1ecf gi\u1ecdt (drip), espresso, cold brew hay tr\u00e0.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u01b0\u1edbc 2 &#8211; Quy \u0111\u1ed5i t\u1eebng \u0111\u1ed3 u\u1ed1ng b\u1eb1ng h\u1ec7 s\u1ed1 nh\u00e2n theo-ounce ho\u1eb7c theo-shot. M\u1ed9t nghi\u00ean c\u1ee9u khoa h\u1ecdc v\u1ec1 m\u1ee9c \u0111\u1ed9 ph\u01a1i nhi\u1ec5m caffeine t\u1ea1i Hoa K\u1ef3 s\u1eed d\u1ee5ng d\u1eef li\u1ec7u USDA\/NCCDB \u0111\u00e3 \u0111\u1eb7t n\u1ec1n t\u1ea3ng v\u1eefng ch\u1eafc cho ph\u01b0\u01a1ng ph\u00e1p n\u00e0y. Gi\u1ed1ng nh\u01b0 c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u0111\u00e3 l\u01b0u \u00fd trong b\u00e1o c\u00e1o \u0110\u00e1nh Gi\u00e1 M\u1ee9c \u0110\u1ed9 Ti\u1ebfp X\u00fac Ch\u1ebf \u0110\u1ed9 \u0102n U\u1ed1ng V\u1edbi Caffeine T\u1eeb \u0110\u1ed3 U\u1ed1ng \u1ede D\u00e2n S\u1ed1 Hoa K\u1ef3 S\u1eed D\u1ee5ng Gi\u00e1 Tr\u1ecb Caffeine \u0110\u1eb7c Tr\u01b0ng Theo Th\u01b0\u01a1ng Hi\u1ec7u Thay V\u00ec Theo Danh M\u1ee5c:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">&#8220;H\u1ea7u h\u1ebft c\u00e0 ph\u00ea pha t\u1ea1i nh\u00e0 \u0111\u1ec1u \u0111\u01b0\u1ee3c g\u00e1n m\u1ed9t gi\u00e1 tr\u1ecb m\u1eb7c \u0111\u1ecbnh l\u00e0 11.9 mg caffeine tr\u00ean m\u1ed7i ounce ch\u1ea5t l\u1ecfng.&#8221;<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">Con s\u1ed1 \u0111\u00f3 \u0111\u01b0\u1ee3c l\u00e0m tr\u00f2n th\u00e0nh ~12 mg m\u1ed7i ounce \u0111\u1ed1i v\u1edbi c\u00e0 ph\u00ea ph\u1ec5u l\u1ecdc (drip coffee), m\u1ed9t m\u1ee9c c\u01a1 s\u1edf \u0111\u00e1ng tin c\u1eady cho vi\u1ec7c pha ch\u1ebf t\u1ea1i nh\u00e0. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c h\u1ec7 s\u1ed1 nh\u00e2n cho nh\u1eefng lo\u1ea1i th\u1ee9c u\u1ed1ng m\u00e0 m\u1ecdi ng\u01b0\u1eddi th\u1ef1c s\u1ef1 ti\u00eau th\u1ee5:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n\n<li>C\u00e0 ph\u00ea ph\u1ec5u l\u1ecdc (Drip coffee): ~12 mg m\u1ed7i ounce<\/li>\n\n\n<li>Espresso: ~65 mg m\u1ed7i shot<\/li>\n\n\n<li>Cold brew: ~22 mg m\u1ed7i ounce<\/li>\n\n\n<li>Tr\u00e0: ~6\u20139 mg m\u1ed7i ounce<\/li>\n\n\n<p class=\"wp-block-paragraph\">&#8211;><!-- wpml:html_fragment<\/p> -->\n\n\n\n\n<p class=\"wp-block-paragraph\">B\u01b0\u1edbc 3 \u2014 C\u1ed9ng t\u1ea5t c\u1ea3 l\u1ea1i. T\u1ed5ng s\u1ed1 \u0111\u00f3 ch\u00ednh l\u00e0 t\u1ed5ng l\u01b0\u1ee3ng caffeine h\u00e0ng ng\u00e0y c\u1ee7a b\u1ea1n. Gi\u1edd h\u00e3y so s\u00e1nh n\u00f3 v\u1edbi m\u1ee9c tr\u1ea7n c\u00e1 nh\u00e2n c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Hai Ng\u00e0y Th\u1ef1c T\u1ebf, Hai T\u1ed5ng L\u01b0\u1ee3ng Ho\u00e0n To\u00e0n Kh\u00e1c Nhau<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u01b0\u01a1ng ph\u00e1p nh\u1ea9m t\u00ednh ch\u1ec9 th\u1ef1c s\u1ef1 ph\u00e1t huy t\u00e1c d\u1ee5ng khi b\u1ea1n th\u1ea5y n\u00f3 ch\u1ea1y xuy\u00ean su\u1ed1t m\u1ed9t ng\u00e0y th\u1ef1c t\u1ebf, ch\u1ee9 kh\u00f4ng ph\u1ea3i \u1edf trong m\u1ed9t k\u1ecbch b\u1ea3n gi\u1ea3 \u0111\u1ecbnh m\u1ed9t-t\u00e1ch-duy-nh\u1ea5t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5 v\u1ec1 m\u1ed9t ng\u00e0y \u0111i\u1ec1u \u0111\u1ed9: B\u1ea1n kh\u1edfi \u0111\u1ea7u v\u1edbi m\u1ed9t t\u00e1ch c\u00e0 ph\u00ea ph\u1ec5u l\u1ecdc 12-oz t\u1ea1i nh\u00e0, sau \u0111\u00f3 mua m\u1ed9t ly latte hai shot v\u00e0o gi\u1eefa bu\u1ed5i s\u00e1ng. Ph\u00e9p t\u00ednh l\u00e0 12 \u00d7 12 = 144 mg t\u1eeb c\u00e0 ph\u00ea ph\u1ec5u l\u1ecdc, c\u1ed9ng v\u1edbi 2 \u00d7 65 = 130 mg t\u1eeb hai shot espresso. T\u1ed5ng l\u01b0\u1ee3ng t\u00edch l\u0169y c\u1ee7a b\u1ea1n d\u1eebng l\u1ea1i \u1edf 274 mg, n\u1eb1m \u1edf m\u1ee9c tho\u1ea3i m\u00e1i d\u01b0\u1edbi ng\u01b0\u1ee1ng h\u01b0\u1edbng d\u1eabn 400-mg d\u00e0nh cho h\u1ea7u h\u1ebft ng\u01b0\u1eddi l\u1edbn kh\u1ecfe m\u1ea1nh.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5 v\u1ec1 m\u1ed9t ng\u00e0y n\u1ea1p nhi\u1ec1u: B\u1ea1n b\u1ecf qua c\u00e0 ph\u00ea ph\u1ec5u l\u1ecdc v\u00e0 ti\u1ebfn th\u1eb3ng t\u1edbi m\u1ed9t ly cold brew 16-oz, sau \u0111\u00f3 d\u00f9ng m\u1ed9t t\u00e1ch c\u00e0 ph\u00ea ph\u1ec5u l\u1ecdc 8-oz v\u00e0o bu\u1ed5i chi\u1ec1u. Ph\u00e9p t\u00ednh l\u00e0 16 \u00d7 22 = 320 mg t\u1eeb ly cold brew, c\u1ed9ng v\u1edbi 8 \u00d7 12 = 96 mg t\u1eeb t\u00e1ch c\u00e0 ph\u00ea bu\u1ed5i chi\u1ec1u. T\u1ed5ng l\u01b0\u1ee3ng t\u00edch l\u0169y c\u1ee7a b\u1ea1n ch\u1ea1m m\u1ed1c 416 mg, v\u01b0\u1ee3t qua ng\u01b0\u1ee1ng ti\u00eau chu\u1ea9n tr\u01b0\u1edbc c\u1ea3 b\u1eefa t\u1ed1i v\u00e0 \u0111\u1ee7 \u0111\u1ec3 \u0111\u1ea9y nh\u1eefng c\u00e1 nh\u00e2n nh\u1ea1y c\u1ea3m r\u01a1i v\u00e0o v\u00f9ng b\u1ed3n ch\u1ed3n v\u00e0 gi\u00e1n \u0111o\u1ea1n gi\u1ea5c ng\u1ee7.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa hai ng\u00e0y n\u00e0y kh\u00f4ng n\u1eb1m \u1edf s\u1ed1 l\u01b0\u1ee3ng \u0111\u1ed3 u\u1ed1ng ti\u00eau th\u1ee5 m\u1ed9t c\u00e1ch qu\u00e1 k\u1ecbch t\u00ednh. N\u00f3 ch\u1ec9 n\u1eb1m \u1edf m\u1ed9t s\u1ef1 ho\u00e1n \u0111\u1ed5i \u0111\u1ecbnh d\u1ea1ng duy nh\u1ea5t (t\u1eeb ph\u1ec5u l\u1ecdc sang cold brew) \u0111\u00e3 \u00e2m th\u1ea7m c\u1ed9ng th\u00eam 175 mg. N\u1ebfu kh\u00f4ng c\u00f3 ph\u01b0\u01a1ng ph\u00e1p nh\u1ea9m t\u00ednh n\u00e0y, s\u1ef1 d\u1ecbch chuy\u1ec3n \u0111\u00f3 ho\u00e0n to\u00e0n v\u00f4 h\u00ecnh.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">So S\u00e1nh T\u1ed5ng L\u01b0\u1ee3ng C\u1ee7a B\u1ea1n V\u1edbi M\u1ee9c Tr\u1ea7n C\u00e1 Nh\u00e2n<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Khi b\u1ea1n \u0111\u00e3 c\u00f3 \u0111\u01b0\u1ee3c con s\u1ed1 c\u1ee7a m\u00ecnh, vi\u1ec7c so s\u00e1nh r\u1ea5t th\u1eb3ng th\u1eafn: 400 mg l\u00e0 m\u1ee9c tr\u1ea7n ti\u00eau chu\u1ea9n cho ng\u01b0\u1eddi l\u1edbn kh\u1ecfe m\u1ea1nh, nh\u01b0ng nh\u01b0 \u0111\u00e3 \u0111\u1ec1 c\u1eadp \u1edf ph\u1ea7n tr\u01b0\u1edbc c\u1ee7a h\u01b0\u1edbng d\u1eabn n\u00e0y, con s\u1ed1 \u0111\u00f3 s\u1ebd gi\u1ea3m xu\u1ed1ng \u0111\u00e1ng k\u1ec3 n\u1ebfu b\u1ea1n \u0111ang mang thai, l\u00e0 thanh thi\u1ebfu ni\u00ean, ho\u1eb7c l\u00e0 ng\u01b0\u1eddi chuy\u1ec3n h\u00f3a caffeine ch\u1eadm do di truy\u1ec1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu t\u1ed5ng l\u01b0\u1ee3ng c\u1ee7a b\u1ea1n n\u1eb1m d\u01b0\u1edbi m\u1ee9c tr\u1ea7n, b\u1ea1n \u0111ang \u1edf trong m\u1ed9t ph\u1ea1m vi h\u1ee3p l\u00fd. N\u1ebfu n\u00f3 v\u01b0\u1ee3t qua, d\u00f9 ch\u1ec9 l\u00e0 m\u1ed9t bi\u00ean \u0111\u1ed9 nh\u1ecf, ph\u01b0\u01a1ng ph\u00e1p nh\u1ea9m t\u00ednh n\u00e0y c\u0169ng \u0111\u00e3 ch\u1ec9 cho b\u1ea1n bi\u1ebft ch\u00ednh x\u00e1c l\u01b0\u1ee3ng d\u01b0 th\u1eeba \u0111\u00f3 \u0111\u1ebfn t\u1eeb \u0111\u00e2u, \u0111i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 b\u1ea1n c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh m\u1ed9t m\u00f3n \u0111\u1ed3 u\u1ed1ng, ch\u1ee9 kh\u00f4ng c\u1ea7n ph\u1ea3i \u0111\u1ea1i tu l\u1ea1i to\u00e0n b\u1ed9 th\u00f3i quen c\u1ee7a m\u00ecnh.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y ch\u00ednh l\u00e0 gi\u00e1 tr\u1ecb th\u1ef1c s\u1ef1 c\u1ee7a ph\u01b0\u01a1ng ph\u00e1p nh\u1ea9m t\u00ednh l\u01b0\u1ee3ng caffeine: n\u00f3 bi\u1ebfn h\u00e0m l\u01b0\u1ee3ng caffeine c\u1ee7a c\u00e0 ph\u00ea t\u1eeb m\u1ed9t d\u1eef ki\u1ec7n t\u0129nh tr\u00ean nh\u00e3n m\u00e1c th\u00e0nh m\u1ed9t con s\u1ed1 s\u1ed1ng \u0111\u1ed9ng h\u00e0ng ng\u00e0y m\u00e0 b\u1ea1n th\u1ef1c s\u1ef1 c\u00f3 th\u1ec3 ki\u1ec3m so\u00e1t \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n<h2 class=\"wp-block-heading\">Th\u00f3i Quen C\u00e0 Ph\u00ea Th\u00f4ng Minh Cho N\u0103ng L\u01b0\u1ee3ng M\u00e0 Kh\u00f4ng Suy S\u1ee5p<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Th\u1eddi \u0111i\u1ec3m n\u1ea1p caffeine ch\u00ednh x\u00e1c s\u1ebd bi\u1ebfn t\u00e1ch c\u00e0 ph\u00ea h\u00e0ng ng\u00e0y c\u1ee7a b\u1ea1n t\u1eeb m\u1ed9t th\u00f3i quen ph\u1ea3n x\u1ea1 th\u00e0nh m\u1ed9t c\u00f4ng c\u1ee5 mang l\u1ea1i s\u1ef1 t\u1ec9nh t\u00e1o t\u1ed9t \u0111\u1ec9nh ch\u00ednh x\u00e1c v\u00e0o l\u00fac b\u1ea1n c\u1ea7n n\u00f3, m\u00e0 kh\u00f4ng ph\u1ea3i vay m\u01b0\u1ee3n t\u1eeb gi\u1ea5c ng\u1ee7 c\u1ee7a b\u1ea1n. H\u00e0m l\u01b0\u1ee3ng caffeine c\u1ee7a c\u00e0 ph\u00ea kh\u00f4ng ch\u1ec9 quy\u1ebft \u0111\u1ecbnh m\u1ee9c \u0111\u1ed9 b\u1ed3n ch\u1ed3n c\u1ee7a b\u1ea1n; n\u00f3 c\u00f2n quy\u1ebft \u0111\u1ecbnh hi\u1ec7u \u1ee9ng \u0111\u00f3 s\u1ebd l\u01b0u l\u1ea1i trong h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n bao l\u00e2u. V\u00e0 kho\u1ea3ng c\u00e1ch th\u1eddi gian gi\u1eefa t\u00e1ch cu\u1ed1i c\u00f9ng v\u00e0 chi\u1ebfc g\u1ed1i c\u1ee7a b\u1ea1n quan tr\u1ecdng h\u01a1n nhi\u1ec1u so v\u1edbi nh\u1eefng g\u00ec h\u1ea7u h\u1ebft m\u1ecdi ng\u01b0\u1eddi th\u01b0\u1eddng nh\u1eadn ra.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Quy T\u1eafc 6-Gi\u1edd B\u1ea3o V\u1ec7 Gi\u1ea5c Ng\u1ee7<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00e3y d\u1eebng m\u1ecdi ho\u1ea1t \u0111\u1ed9ng n\u1ea1p caffeine \u00edt nh\u1ea5t 6 gi\u1edd tr\u01b0\u1edbc gi\u1edd \u0111i ng\u1ee7. \u0110\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t l\u1eddi g\u1ee3i \u00fd nh\u1eb9 nh\u00e0ng, n\u00f3 d\u1ef1a tr\u00ean nh\u1eefng g\u00ec ch\u00fang ta bi\u1ebft v\u1ec1 chu k\u1ef3 b\u00e1n r\u00e3 c\u1ee7a caffeine. N\u1ebfu b\u1ea1n \u0111i ng\u1ee7 l\u00fac 10 gi\u1edd t\u1ed1i, th\u1eddi h\u1ea1n ch\u00f3t c\u1ee7a b\u1ea1n tr\u1ec5 nh\u1ea5t l\u00e0 4 gi\u1edd chi\u1ec1u. N\u1ebfu \u0111\u1ea9y qu\u00e1 khung th\u1eddi gian \u0111\u00f3, b\u1ea1n kh\u00f4ng ch\u1ec9 \u0111\u1ed1i m\u1eb7t v\u1edbi nguy c\u01a1 kh\u00f3 ch\u00ecm v\u00e0o gi\u1ea5c ng\u1ee7, m\u00e0 b\u1ea1n c\u00f2n \u0111ang l\u00e0m suy gi\u1ea3m ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a ch\u00ednh gi\u1ea5c ng\u1ee7 m\u00e0 b\u1ea1n c\u00f3 \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t \u0111\u00e1nh gi\u00e1 l\u00e2m s\u00e0ng c\u00f3 h\u1ec7 th\u1ed1ng \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 tr\u00ean t\u1ea1p ch\u00ed Sleep Medicine Reviews \u0111\u00e3 \u0111\u01b0a ra nh\u1eefng con s\u1ed1 c\u1ee5 th\u1ec3 \u0111\u1eb1ng sau c\u1ea3m gi\u00e1c m\u00e0 h\u1ea7u h\u1ebft nh\u1eefng ng\u01b0\u1eddi u\u1ed1ng c\u00e0 ph\u00ea \u0111\u1ec1u tr\u1ea3i qua nh\u01b0ng kh\u00f4ng th\u1ec3 gi\u1ea3i th\u00edch r\u00f5 r\u00e0ng:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">&#8220;Caffeine th\u01b0\u1eddng k\u00e9o d\u00e0i \u0111\u1ed9 tr\u1ec5 c\u1ee7a gi\u1ea5c ng\u1ee7 (th\u1eddi gian \u0111\u1ec3 ch\u00ecm v\u00e0o gi\u1ea5c ng\u1ee7), l\u00e0m gi\u1ea3m t\u1ed5ng th\u1eddi gian ng\u1ee7 v\u00e0 hi\u1ec7u qu\u1ea3 gi\u1ea5c ng\u1ee7, \u0111\u1ed3ng th\u1eddi l\u00e0m gi\u1ea3m s\u00fat ch\u1ea5t l\u01b0\u1ee3ng gi\u1ea5c ng\u1ee7 \u0111\u01b0\u1ee3c c\u1ea3m nh\u1eadn.&#8221;<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed9 tr\u1ec5 c\u1ee7a gi\u1ea5c ng\u1ee7 ngh\u0129a l\u00e0 b\u1ea1n m\u1ea5t bao l\u00e2u \u0111\u1ec3 ch\u00ecm v\u00e0o gi\u1ea5c ng\u1ee7. Hi\u1ec7u qu\u1ea3 gi\u1ea5c ng\u1ee7 l\u00e0 t\u1ef7 l\u1ec7 gi\u1eefa th\u1eddi gian th\u1ef1c ng\u1ee7 so v\u1edbi th\u1eddi gian n\u1eb1m tr\u00ean gi\u01b0\u1eddng. C\u1ea3 hai ch\u1ec9 s\u1ed1 n\u00e0y \u0111\u1ec1u \u0111i theo chi\u1ec1u h\u01b0\u1edbng x\u1ea5u khi caffeine v\u1eabn c\u00f2n ho\u1ea1t \u0111\u1ed9ng trong m\u00e1u l\u00fac b\u1ea1n t\u1eaft \u0111\u00e8n. B\u1ea1n c\u00f3 th\u1ec3 ch\u00ecm v\u00e0o gi\u1ea5c ng\u1ee7 m\u1ed9t c\u00e1ch b\u00ecnh th\u01b0\u1eddng v\u00e0 l\u00fac th\u1ee9c d\u1eady v\u1eabn c\u1ea3m th\u1ea5y nh\u01b0 ch\u01b0a ng\u1ee7 \u0111\u1ee7, b\u1edfi v\u00ec th\u1ef1c t\u1ebf l\u00e0 v\u1eady, b\u1ea1n ch\u01b0a \u0111\u01b0\u1ee3c ng\u1ee7 m\u1ed9t c\u00e1ch tr\u1ecdn v\u1eb9n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Ch\u1ecdn Th\u1eddi \u0110i\u1ec3m U\u1ed1ng C\u00e0 Ph\u00ea \u0110\u1ec3 \u0110\u1ea1t \u0110\u1ed9 T\u1ec9nh T\u00e1o \u0110\u1ec9nh Cao<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">H\u1ea7u h\u1ebft m\u1ecdi ng\u01b0\u1eddi u\u1ed1ng t\u00e1ch c\u00e0 ph\u00ea \u0111\u1ea7u ti\u00ean ngay kho\u1ea3nh kh\u1eafc h\u1ecd th\u1ee9c d\u1eady, \u0111i\u1ec1u n\u00e0y th\u1ef1c ch\u1ea5t l\u1ea1i r\u01a1i v\u00e0o \u0111\u00fang khung gi\u1edd m\u00e0 n\u00f3 k\u00e9m hi\u1ec7u qu\u1ea3 nh\u1ea5t. M\u1ee9c cortisol (hormone t\u1ec9nh t\u00e1o t\u1ef1 nhi\u00ean c\u1ee7a c\u01a1 th\u1ec3) \u0111\u1ea1t \u0111\u1ec9nh trong 30 \u0111\u1ebfn 60 ph\u00fat \u0111\u1ea7u ti\u00ean sau khi th\u1ee9c d\u1eady. Nh\u1ed3i nh\u00e9t th\u00eam caffeine l\u00ean tr\u00ean \u0111\u1ec9nh \u0111\u00f3 kh\u00f4ng l\u00e0m khu\u1ebfch \u0111\u1ea1i s\u1ef1 t\u1ec9nh t\u00e1o; ph\u1ea7n l\u1edbn n\u00f3 ch\u1ec9 khi\u1ebfn b\u1ea1n h\u00ecnh th\u00e0nh kh\u1ea3 n\u0103ng ch\u1ecbu \u0111\u1ef1ng (nh\u1eddn caffeine) nhanh h\u01a1n m\u00e0 th\u00f4i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t c\u00e1ch ti\u1ebfp c\u1eadn th\u00f4ng minh h\u01a1n: h\u00e3y \u0111\u1ee3i 60 \u0111\u1ebfn 90 ph\u00fat sau khi th\u1ee9c d\u1eady, sau \u0111\u00f3 s\u1eed d\u1ee5ng caffeine m\u1ed9t c\u00e1ch c\u00f3 ch\u1ee7 \u0111\u00edch. H\u00e3y u\u1ed1ng n\u00f3 kho\u1ea3ng 30 ph\u00fat tr\u01b0\u1edbc khi b\u1eaft tay v\u00e0o m\u1ed9t nhi\u1ec7m v\u1ee5 \u0111\u00f2i h\u1ecfi s\u1ef1 t\u1eadp trung (m\u1ed9t bu\u1ed5i thuy\u1ebft tr\u00ecnh, m\u1ed9t phi\u00ean vi\u1ebft d\u00e0i, m\u1ed9t bu\u1ed5i t\u1eadp luy\u1ec7n) \u0111\u1ec3 \u0111\u1ec9nh \u0111i\u1ec3m t\u00e1c d\u1ee5ng r\u01a1i v\u00e0o \u0111\u00fang l\u00fac b\u1ea1n c\u1ea7n n\u00f3 nh\u1ea5t. \u0110\u00f3 l\u00e0 c\u00e1ch c\u0103n th\u1eddi \u0111i\u1ec3m caffeine ph\u1ed1i h\u1ee3p c\u00f9ng sinh h\u1ecdc c\u01a1 th\u1ec3 b\u1ea1n, thay v\u00ec ch\u1ea1y song song v\u00e0 \u0111\u1ed1i \u0111\u1ea7u v\u1edbi n\u00f3.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u0110\u1ecdc V\u1ecb Nh\u1eefng T\u00edn Hi\u1ec7u &#8220;V\u01b0\u1ee3t Qu\u00e1 Gi\u1edbi H\u1ea1n&#8221; C\u1ee7a Ri\u00eang B\u1ea1n<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00e0m l\u01b0\u1ee3ng caffeine c\u1ee7a c\u00e0 ph\u00ea \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn m\u1ed7i ng\u01b0\u1eddi m\u1ed9t c\u00e1ch kh\u00e1c nhau, v\u00e0 c\u01a1 th\u1ec3 b\u1ea1n s\u1ebd l\u00ean ti\u1ebfng khi b\u1ea1n v\u01b0\u1ee3t qua ng\u01b0\u1ee1ng gi\u1edbi h\u1ea1n c\u00e1 nh\u00e2n, mi\u1ec5n l\u00e0 b\u1ea1n ch\u1ecbu kh\u00f3 l\u1eafng nghe. C\u1ea3m gi\u00e1c b\u1ed3n ch\u1ed3n dai d\u1eb3ng kh\u00f4ng d\u1ee9t sau m\u1ed9t gi\u1edd, tr\u00e1i tim \u0111\u1eadp th\u00ecnh th\u1ecbch, m\u1ed9t c\u01a1n lo \u00e2u nh\u00e8 nh\u1eb9 kh\u00f4ng r\u00f5 nguy\u00ean do, ho\u1eb7c c\u1ea3m gi\u00e1c c\u1ed3n c\u00e0o \u0111au d\u1ea1 d\u00e0y sau t\u00e1ch th\u1ee9 hai hay th\u1ee9 ba: \u0111\u00e2y l\u00e0 nh\u1eefng t\u00edn hi\u1ec7u c\u1ee7a s\u1ef1 nh\u1ea1y c\u1ea3m, kh\u00f4ng ph\u1ea3i l\u00e0 s\u1ef1 tr\u00f9ng h\u1ee3p ng\u1eabu nhi\u00ean.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Khi b\u1ea1n nh\u1eadn th\u1ea5y ch\u00fang, \u0111\u1eebng v\u1edbi l\u1ea5y ly n\u01b0\u1edbc v\u00e0 c\u1ed1 g\u1eafng ch\u1ecbu \u0111\u1ef1ng cho qua. \u0110\u00f3 l\u00e0 l\u00fac h\u1ec7 th\u1ea7n kinh \u0111ang n\u00f3i cho b\u1ea1n bi\u1ebft r\u1eb1ng li\u1ec1u l\u01b0\u1ee3ng \u0111\u00f3 \u0111\u00e3 qu\u00e1 cao so v\u1edbi tr\u1ea1ng th\u00e1i hi\u1ec7n t\u1ea1i c\u1ee7a b\u1ea1n. H\u00e3y c\u1eaft gi\u1ea3m th\u1ec3 t\u00edch, gi\u00e3n c\u00e1ch th\u1eddi gian gi\u1eefa c\u00e1c t\u00e1ch, ho\u1eb7c ng\u1eebng u\u1ed1ng s\u1edbm h\u01a1n trong ng\u00e0y. Vi\u1ec7c t\u1ef1 theo d\u00f5i t\u1ed5ng l\u01b0\u1ee3ng n\u1ea1p v\u00e0o h\u00e0ng ng\u00e0y, theo c\u00e1ch ch\u00fang ta \u0111\u00e3 th\u1ef1c h\u00e0nh \u1edf ph\u1ea7n tr\u01b0\u1edbc, cung c\u1ea5p cho b\u1ea1n d\u1eef li\u1ec7u \u0111\u1ec3 k\u1ebft n\u1ed1i nh\u1eefng t\u00edn hi\u1ec7u \u0111\u00f3 v\u1edbi c\u00e1c th\u00f3i quen c\u1ee5 th\u1ec3. Kh\u00f4ng c\u00f3 con s\u1ed1 \u0111\u00f3 tr\u01b0\u1edbc m\u1eb7t, ng\u01b0\u1eddi ta r\u1ea5t d\u1ec5 \u0111\u1ed5 l\u1ed7i nh\u1eefng t\u00edn hi\u1ec7u n\u00e0y cho c\u0103ng th\u1eb3ng ho\u1eb7c thi\u1ebfu ng\u1ee7. Nh\u01b0ng khi \u0111\u00e3 c\u00f3 n\u00f3, quy lu\u1eadt s\u1ebd tr\u1edf n\u00ean r\u00f5 nh\u01b0 ban ng\u00e0y.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Qu\u1ea3n L\u00fd Kh\u1ea3 N\u0103ng Ch\u1ecbu \u0110\u1ef1ng (Tolerance) Theo Th\u1eddi Gian<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c th\u01b0\u1eddng xuy\u00ean ti\u00eau th\u1ee5 li\u1ec1u l\u01b0\u1ee3ng cao s\u1ebd d\u1ea7n d\u1ea7n l\u00e0m c\u00f9n \u0111i t\u00e1c d\u1ee5ng c\u1ee7a caffeine. C\u00e1c th\u1ee5 th\u1ec3 adenosine c\u1ee7a b\u1ea1n th\u00edch nghi, v\u00e0 hai t\u00e1ch c\u00e0 ph\u00ea v\u1ed1n t\u1eebng gi\u00fap b\u1ea1n s\u1eafc s\u1ea3o t\u1eadp trung nay b\u1eaft \u0111\u1ea7u mang l\u1ea1i c\u1ea3m gi\u00e1c ch\u1ec9 l\u00e0 m\u1ee9c duy tr\u00ec &#8211; v\u1eeba \u0111\u1ee7 \u0111\u1ec3 c\u1ea3m th\u1ea5y b\u00ecnh th\u01b0\u1eddng. \u0110\u00f3 l\u00e0 l\u00e3nh \u0111\u1ecba c\u1ee7a vi\u1ec7c qu\u1ea3n l\u00fd kh\u1ea3 n\u0103ng ch\u1ecbu \u0111\u1ef1ng (tolerance).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1ch kh\u1eafc ph\u1ee5c kh\u00f4ng h\u1ec1 ph\u1ee9c t\u1ea1p: h\u00e3y \u0111\u1ecbnh k\u1ef3 c\u1eaft gi\u1ea3m ho\u1eb7c t\u1ea1m ng\u01b0ng u\u1ed1ng c\u00e0 ph\u00ea trong v\u00e0i ng\u00e0y. Th\u1eadm ch\u00ed ch\u1ec9 m\u1ed9t \u0111\u1ee3t gi\u1ea3m thi\u1ec3u t\u1eeb 3 \u0111\u1ebfn 5 ng\u00e0y c\u0169ng c\u00f3 th\u1ec3 thi\u1ebft l\u1eadp l\u1ea1i \u0111\u1ed9 nh\u1ea1y c\u1ea3m c\u1ee7a b\u1ea1n m\u1ed9t c\u00e1ch \u0111\u00e1ng k\u1ec3. B\u1ea1n s\u1ebd c\u1ea3m th\u1ea5y h\u1ee5t h\u1eabng (dip), nh\u01b0ng khi b\u1ea1n quay tr\u1edf l\u1ea1i, s\u1ef1 b\u1eadt n\u1ea3y (rebound) th\u01b0\u1eddng r\u1ea5t s\u1eafc n\u00e9t v\u00e0 r\u00f5 r\u00e0ng. Nhi\u1ec1u ng\u01b0\u1eddi \u00e1p d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p n\u00e0y nh\u1eadn ra r\u1eb1ng h\u1ecd c\u1ea7n l\u01b0\u1ee3ng caffeine \u00edt h\u01a1n \u0111\u00e1ng k\u1ec3 \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c hi\u1ec7u \u1ee9ng m\u00e0 h\u1ecd t\u1eebng ph\u1ea3i theo \u0111u\u1ed5i b\u1eb1ng m\u1ed9t li\u1ec1u l\u01b0\u1ee3ng cao h\u01a1n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Gi\u1edbi H\u1ea1n C\u00e1 Nh\u00e2n C\u1ee7a B\u1ea1n L\u00e0 M\u1ed9t Con S\u1ed1 S\u1ed1ng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ee9c tr\u1ea7n 400 mg m\u1ed7i ng\u00e0y l\u00e0 m\u1ed9t h\u01b0\u1edbng d\u1eabn \u1edf c\u1ea5p \u0111\u1ed9 qu\u1ea7n th\u1ec3, kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t \u0111\u01a1n thu\u1ed1c d\u00e0nh ri\u00eang cho c\u00e1 nh\u00e2n. Gen di truy\u1ec1n, c\u00e1c lo\u1ea1i thu\u1ed1c \u0111ang s\u1eed d\u1ee5ng, s\u1ee9c kh\u1ecfe tim m\u1ea1ch, ti\u1ec1n s\u1eed lo \u00e2u, v\u00e0 th\u1eadm ch\u00ed c\u1ea3 tr\u1ecdng l\u01b0\u1ee3ng c\u01a1 th\u1ec3 \u0111\u1ec1u l\u00e0m thay \u0111\u1ed5i v\u1ecb tr\u00ed th\u1ef1c s\u1ef1 c\u1ee7a gi\u1edbi h\u1ea1n an to\u00e0n c\u00e1 nh\u00e2n. M\u1ed9t s\u1ed1 ng\u01b0\u1eddi c\u1ea3m th\u1ea5y tuy\u1ec7t v\u1eddi \u1edf m\u1ee9c 350 mg. Nh\u1eefng ng\u01b0\u1eddi kh\u00e1c l\u1ea1i th\u1ea5y t\u1edbi h\u1ea1n \u1edf 150 mg. T\u1ed5ng s\u1ed1 l\u01b0\u1ee3ng do b\u1ea1n t\u1ef1 theo d\u00f5i l\u00e0 t\u00edn hi\u1ec7u ch\u00e2n th\u1ef1c nh\u1ea5t m\u00e0 b\u1ea1n c\u00f3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00e3y coi n\u00f3 nh\u01b0 m\u1ed9t h\u1ec7 quy chi\u1ebfu s\u1ed1ng \u0111\u1ed9ng, m\u1ed9t th\u1ee9 b\u1ea1n c\u1ea7n xem x\u00e9t l\u1ea1i khi th\u00f3i quen thay \u0111\u1ed5i, khi gi\u1ea5c ng\u1ee7 b\u1eaft \u0111\u1ea7u ch\u1eadp ch\u1eddn, ho\u1eb7c khi nh\u1eefng t\u00edn hi\u1ec7u nh\u1ea1y c\u1ea3m \u0111\u00f3 b\u1eaft \u0111\u1ea7u xu\u1ea5t hi\u1ec7n th\u01b0\u1eddng xuy\u00ean h\u01a1n. M\u1ee5c ti\u00eau ch\u01b0a bao gi\u1edd l\u00e0 ph\u1ea3i ch\u1ea1m m\u1ed1c 400 mg. M\u1ee5c ti\u00eau l\u00e0 t\u00ecm ra li\u1ec1u l\u01b0\u1ee3ng mang l\u1ea1i cho b\u1ea1n n\u0103ng l\u01b0\u1ee3ng \u1ed5n \u0111\u1ecbnh, s\u1ea1ch s\u1ebd, b\u1ea3o v\u1ec7 gi\u1ea5c ng\u1ee7 v\u00e0 gi\u00fap b\u1ea1n v\u1eabn l\u00e0 ch\u00ednh m\u00ecnh khi chi\u1ec1u bu\u00f4ng. Con s\u1ed1 \u0111\u00f3 thu\u1ed9c v\u1ec1 b\u1ea1n, ch\u1edd b\u1ea1n kh\u00e1m ph\u00e1, v\u00e0 gi\u1edd \u0111\u00e2y b\u1ea1n \u0111\u00e3 c\u00f3 trong tay nh\u1eefng c\u00f4ng c\u1ee5 \u0111\u1ec3 t\u00ecm ra n\u00f3.<\/p>\n\n<hr class=\"wp-block-separator\"\/>\n<h2>B\u00e0i H\u1ecdc R\u00fat Ra V\u1ec1 H\u00e0m L\u01b0\u1ee3ng Caffeine Trong C\u00e0 Ph\u00ea<\/h2>\n<ul>\n<li>H\u00e0m l\u01b0\u1ee3ng caffeine bi\u1ebfn thi\u00ean h\u00e0ng tr\u0103m miligram m\u1ed7i t\u00e1ch; &#8220;m\u1ed9t ly c\u00e0 ph\u00ea&#8221; c\u1ee7a b\u1ea1n kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t li\u1ec1u l\u01b0\u1ee3ng ti\u00eau chu\u1ea9n.<\/li>\n<li>Gi\u1edbi h\u1ea1n 400mg m\u1ed7i ng\u00e0y l\u00e0 m\u1ee9c trung b\u00ecnh c\u1ee7a s\u1ed1 \u0111\u00f4ng\u2014m\u1ee9c tr\u1ea7n an to\u00e0n c\u1ee7a c\u00e1 nh\u00e2n b\u1ea1n c\u00f3 th\u1ec3 th\u1ea5p h\u01a1n nhi\u1ec1u.<\/li>\n<li>C\u00e0 ph\u00ea rang \u0111\u1eadm kh\u00f4ng ch\u1ee9a \u00edt caffeine h\u01a1n n\u1ebfu x\u00e9t theo tr\u1ecdng l\u01b0\u1ee3ng; s\u1ef1 kh\u00e1c bi\u1ec7t n\u00e0y ho\u00e0n to\u00e0n bi\u1ebfn m\u1ea5t khi b\u1ea1n d\u00f9ng c\u00e2n \u0111\u1ec3 \u0111ong.<\/li>\n<li>C\u0103n th\u1eddi \u0111i\u1ec3m u\u1ed1ng caffeine xoay quanh \u0111\u1ec9nh cortisol v\u00e0 d\u1eebng u\u1ed1ng s\u00e1u gi\u1edd tr\u01b0\u1edbc khi ng\u1ee7 s\u1ebd gi\u00fap b\u1ea3o v\u1ec7 ch\u1ea5t l\u01b0\u1ee3ng gi\u1ea5c ng\u1ee7.<\/li>\n<li>Theo d\u00f5i t\u1ed5ng l\u01b0\u1ee3ng n\u1ea1p v\u00e0o h\u00e0ng ng\u00e0y b\u1eb1ng c\u00e1c h\u1ec7 s\u1ed1 nh\u00e2n \u0111\u01a1n gi\u1ea3n bi\u1ebfn th\u00f3i quen m\u01a1 h\u1ed3 th\u00e0nh m\u1ed9t con s\u1ed1 b\u1ea1n c\u00f3 th\u1ec3 ki\u1ec3m so\u00e1t.<\/li>\n<li>C\u00e0 ph\u00ea Decaf v\u1eabn ch\u1ee9a h\u00e0m l\u01b0\u1ee3ng caffeine nh\u1ecf gi\u1ecdt; nh\u1eefng ng\u01b0\u1eddi nh\u1ea1y c\u1ea3m v\u1eabn c\u1ea7n ph\u1ea3i \u0111ong \u0111\u1ebfm nh\u1eefng miligram \u0111\u00f3.<\/li>\n<\/ul>\n<hr class=\"wp-block-separator\"\/>\n<h2>C\u00e2u H\u1ecfi Th\u01b0\u1eddng G\u1eb7p V\u1ec1 H\u00e0m L\u01b0\u1ee3ng Caffeine Trong C\u00e0 Ph\u00ea<\/h2>\n<h3>H\u1ecfi: T\u1ea1i sao u\u1ed1ng c\u00e0 ph\u00ea ngay sau khi th\u1ee9c d\u1eady \u0111\u00f4i khi l\u1ea1i khi\u1ebfn t\u00f4i m\u1ec7t m\u1ecfi h\u01a1n v\u00e0o l\u00fac sau?<\/h3>\n<p>\u0110\u00e1p: C\u00e0 ph\u00ea kh\u00f4ng c\u00f3 h\u1ea1i cho cortisol, nh\u01b0ng th\u1eddi \u0111i\u1ec3m u\u1ed1ng l\u00e0 y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh. Cortisol c\u1ee7a b\u1ea1n \u0111\u1ea1t \u0111\u1ec9nh trong gi\u1edd \u0111\u1ea7u ti\u00ean sau khi th\u1ee9c d\u1eady. N\u1ea1p th\u00eam caffeine v\u00e0o l\u00fac \u0111\u00f3 kh\u00f4ng l\u00e0m t\u0103ng c\u01b0\u1eddng s\u1ef1 t\u1ec9nh t\u00e1o l\u00e0 bao; n\u00f3 ch\u1ee7 y\u1ebfu ch\u1ec9 l\u00e0m t\u0103ng kh\u1ea3 n\u0103ng nh\u1eddn caffeine nhanh h\u01a1n. Vi\u1ec7c \u0111\u1ee3i 60\u201390 ph\u00fat cho ph\u00e9p caffeine ho\u1ea1t \u0111\u1ed9ng ph\u1ed1i h\u1ee3p v\u1edbi nh\u1ecbp \u0111i\u1ec7u t\u1ef1 nhi\u00ean c\u1ee7a c\u01a1 th\u1ec3, mang l\u1ea1i cho b\u1ea1n n\u0103ng l\u01b0\u1ee3ng s\u1ea1ch s\u1ebd h\u01a1n m\u00e0 kh\u00f4ng b\u1ecb ki\u1ec7t s\u1ee9c v\u00e0o bu\u1ed5i chi\u1ec1u.<\/p>\n\n<h3>H\u1ecfi: C\u00e0 ph\u00ea French press c\u00f3 th\u1ef1c s\u1ef1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn cholesterol kh\u00f4ng?<\/h3>\n<p>\u0110\u00e1p: C\u00f3, c\u00e1c ph\u01b0\u01a1ng ph\u00e1p kh\u00f4ng d\u00f9ng gi\u1ea5y l\u1ecdc nh\u01b0 French press \u0111\u1ec3 l\u1ea1i diterpene (cafestol v\u00e0 kahweol) trong t\u00e1ch c\u1ee7a b\u1ea1n. Nh\u1eefng h\u1ee3p ch\u1ea5t n\u00e0y c\u00f3 th\u1ec3 l\u00e0m t\u0103ng cholesterol LDL theo th\u1eddi gian. \u0110\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 do t\u00e1c \u0111\u1ed9ng c\u1ee7a caffeine, m\u00e0 l\u00e0 m\u1ed9t bi\u1ebfn s\u1ed1 s\u1ee9c kh\u1ecfe th\u1ef1c s\u1ef1 g\u1eafn li\u1ec1n v\u1edbi c\u00e1ch b\u1ea1n pha ch\u1ebf. Gi\u1ea5y l\u1ecdc c\u00f3 th\u1ec3 lo\u1ea1i b\u1ecf ph\u1ea7n l\u1edbn ch\u00fang, v\u00ec v\u1eady c\u00e0 ph\u00ea nh\u1ecf gi\u1ecdt (drip coffee) kh\u00f4ng g\u1eb7p ph\u1ea3i v\u1ea5n \u0111\u1ec1 n\u00e0y.<\/p>\n\n<h3>H\u1ecfi: T\u1ea1i sao caffeine l\u1ea1i t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn b\u1ea1n t\u00f4i m\u1ea1nh h\u01a1n t\u00f4i d\u00f9 u\u1ed1ng c\u00f9ng m\u1ed9t lo\u1ea1i c\u00e0 ph\u00ea?<\/h3>\n<p>\u0110\u00e1p: Gen di truy\u1ec1n \u0111\u00f3ng m\u1ed9t vai tr\u00f2 r\u1ea5t l\u1edbn. S\u1ef1 bi\u1ebfn d\u1ecb trong gen CYP1A2 quy\u1ebft \u0111\u1ecbnh b\u1ea1n l\u00e0 ng\u01b0\u1eddi chuy\u1ec3n h\u00f3a caffeine nhanh hay ch\u1eadm. Nh\u1eefng ng\u01b0\u1eddi chuy\u1ec3n h\u00f3a ch\u1eadm \u0111\u00e0o th\u1ea3i caffeine ch\u1eadm h\u01a1n t\u1edbi 4 l\u1ea7n, do \u0111\u00f3 c\u00f9ng m\u1ed9t li\u1ec1u l\u01b0\u1ee3ng s\u1ebd l\u01b0u l\u1ea1i l\u00e2u h\u01a1n v\u00e0 mang l\u1ea1i c\u1ea3m gi\u00e1c m\u1ea1nh h\u01a1n. M\u1ee9c gi\u1edbi h\u1ea1n ti\u00eau chu\u1ea9n 400mg kh\u00f4ng \u0111\u01b0\u1ee3c hi\u1ec7u chu\u1ea9n d\u00e0nh cho nh\u00f3m ng\u01b0\u1eddi chuy\u1ec3n h\u00f3a ch\u1eadm.<\/p>\n\n<h3>H\u1ecfi: C\u00e0 ph\u00ea decaf c\u00f3 th\u1ec3 l\u00e0m h\u1ecfng gi\u1ea5c ng\u1ee7 c\u1ee7a t\u00f4i kh\u00f4ng?<\/h3>\n<p>\u0110\u00e1p: Decaf kh\u00f4ng h\u1ec1 s\u1ea1ch b\u00f3ng caffeine\u2014n\u00f3 ch\u1ee9a t\u1eeb 2\u20137mg m\u1ed7i t\u00e1ch. \u0110\u1ed1i v\u1edbi h\u1ea7u h\u1ebft m\u1ecdi ng\u01b0\u1eddi, l\u01b0\u1ee3ng n\u00e0y l\u00e0 kh\u00f4ng \u0111\u00e1ng k\u1ec3, nh\u01b0ng n\u1ebfu b\u1ea1n qu\u00e1 nh\u1ea1y c\u1ea3m ho\u1eb7c u\u1ed1ng v\u00e0i t\u00e1ch v\u00e0o cu\u1ed1i ng\u00e0y, nh\u1eefng l\u01b0\u1ee3ng nh\u1ecf gi\u1ecdt \u0111\u00f3 c\u00f3 th\u1ec3 t\u00edch t\u1ee5. V\u1edbi chu k\u1ef3 b\u00e1n r\u00e3 t\u1eeb 3\u20135 gi\u1edd c\u1ee7a caffeine, ngay c\u1ea3 nh\u1eefng li\u1ec1u l\u01b0\u1ee3ng nh\u1ecf n\u1ea1p v\u00e0o g\u1ea7n gi\u1edd \u0111i ng\u1ee7 c\u0169ng c\u00f3 th\u1ec3 \u00e2m th\u1ea7m l\u00e0m suy gi\u1ea3m ch\u1ea5t l\u01b0\u1ee3ng gi\u1ea5c ng\u1ee7.<\/p>\n\n<h3>H\u1ecfi: C\u00f3 bao nhi\u00eau caffeine th\u1ef1c s\u1ef1 trong m\u1ed9t ly latte?<\/h3>\n<p>\u0110\u00e1p: Caffeine c\u1ee7a m\u1ed9t ly latte \u0111\u1ebfn ho\u00e0n to\u00e0n t\u1eeb c\u00e1c shot espresso. M\u1ed9t shot \u0111\u01a1n ch\u1ee9a kho\u1ea3ng 63mg, m\u1ed9t shot \u0111\u00f4i kho\u1ea3ng 125mg. S\u1eefa kh\u00f4ng b\u1ed5 sung th\u00eam caffeine nh\u01b0ng l\u00e0m ch\u1eadm qu\u00e1 tr\u00ecnh h\u1ea5p th\u1ee5 \u0111\u00f4i ch\u00fat, mang l\u1ea1i c\u1ea3m gi\u00e1c ph\u1ea5n ch\u1ea5n \u00eam \u00e1i h\u01a1n. \u0110\u1ed9 m\u1ea1nh c\u1ee7a ly latte ph\u1ee5 thu\u1ed9c v\u00e0o s\u1ed1 l\u01b0\u1ee3ng shot, ch\u1ee9 kh\u00f4ng ph\u1ea3i k\u00edch c\u1ee1 ly.<\/p>\n\n<h3>H\u1ecfi: Th\u00eam s\u1eefa v\u00e0o c\u00e0 ph\u00ea c\u00f3 l\u00e0m gi\u1ea3m l\u01b0\u1ee3ng caffeine kh\u00f4ng?<\/h3>\n<p>\u0110\u00e1p: Kh\u00f4ng, s\u1eefa kh\u00f4ng l\u00e0m gi\u1ea3m h\u00e0m l\u01b0\u1ee3ng caffeine. Nh\u01b0ng n\u00f3 l\u00e0m ch\u1eadm qu\u00e1 tr\u00ecnh r\u1ed7ng d\u1ea1 d\u00e0y, t\u1eeb \u0111\u00f3 l\u00e0m gi\u1ea3m t\u1ed1c \u0111\u1ed9 h\u1ea5p th\u1ee5. B\u1ea1n v\u1eabn nh\u1eadn \u0111\u01b0\u1ee3c c\u00f9ng m\u1ed9t t\u1ed5ng l\u01b0\u1ee3ng caffeine, ch\u1ec9 l\u00e0 n\u00f3 \u0111\u01b0\u1ee3c ph\u00e2n ph\u1ed1i t\u1eeb t\u1eeb h\u01a1n m\u00e0 th\u00f4i. \u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao m\u1ed9t ly flat white c\u00f3 th\u1ec3 mang l\u1ea1i c\u1ea3m gi\u00e1c b\u1edbt &#8220;s\u1ed1c&#8221; h\u01a1n so v\u1edbi m\u1ed9t shot espresso \u0111en nguy\u00ean ch\u1ea5t, d\u00f9 l\u01b0\u1ee3ng caffeine l\u00e0 nh\u01b0 nhau.<\/p>\n\n<h3>H\u1ecfi: T\u1ea1i sao cold brew l\u1ea1i m\u1ea1nh h\u01a1n r\u1ea5t nhi\u1ec1u so v\u1edbi c\u00e0 ph\u00ea \u0111\u00e1 th\u00f4ng th\u01b0\u1eddng (iced coffee)?<\/h3>\n<p>\u0110\u00e1p: Cold brew \u0111\u01b0\u1ee3c ng\u00e2m t\u1eeb 12\u201324 gi\u1edd, chi\u1ebft xu\u1ea5t ra l\u01b0\u1ee3ng caffeine tr\u00ean m\u1ed7i ounce nhi\u1ec1u h\u01a1n so v\u1edbi c\u00e0 ph\u00ea pha n\u00f3ng r\u1ed3i mang \u0111i \u01b0\u1edbp l\u1ea1nh. C\u00e0 ph\u00ea \u0111\u00e1 (iced coffee) b\u1eaft \u0111\u1ea7u t\u1eeb c\u00e0 ph\u00ea nh\u1ecf gi\u1ecdt pha n\u00f3ng, v\u00ec v\u1eady h\u00e0m l\u01b0\u1ee3ng caffeine c\u1ee7a n\u00f3 ngang b\u1eb1ng v\u1edbi c\u00e0 ph\u00ea pha ti\u00eau chu\u1ea9n. Th\u1eddi gian ti\u1ebfp x\u00fac l\u00e2u v\u00e0 t\u1ef7 l\u1ec7 c\u00e0 ph\u00ea-n\u01b0\u1edbc th\u01b0\u1eddng cao h\u01a1n khi\u1ebfn cold brew tr\u1edf n\u00ean \u0111\u1eadm \u0111\u1eb7c v\u00e0 uy l\u1ef1c h\u01a1n \u0111\u00e1ng k\u1ec3.<\/p>\n<hr class=\"wp-block-separator\"\/>\n<h2>T\u00e0i Li\u1ec7u Tham Kh\u1ea3o<\/h2>\n<ul>\n<li>\u0110\u00e1nh gi\u00e1 v\u1ec1 Caffeine &#8211; T\u1ea1p ch\u00ed Frontiers in Neuroscience<\/li>\n<li>Caffeine &#8211; MedlinePlus<\/li>\n<li>C\u00e1c y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn h\u00e0m l\u01b0\u1ee3ng caffeine &#8211; Hi\u1ec7p h\u1ed9i C\u00e0 ph\u00ea Qu\u1ed1c gia<\/li>\n<li>Ti\u00eau th\u1ee5 C\u00e0 ph\u00ea, Tr\u00e0 v\u00e0 S\u1ef1 \u0110\u00f3ng G\u00f3p T\u1eeb C\u00e1c Th\u00e0nh Ph\u1ea7n B\u1ed5 Sung &#8211; MDPI<\/li>\n<li>\u0110\u00e1nh Gi\u00e1 M\u1ee9c \u0110\u1ed9 Ti\u1ebfp X\u00fac Ch\u1ebf \u0110\u1ed9 \u0102n U\u1ed1ng V\u1edbi Caffeine T\u1eeb \u0110\u1ed3 U\u1ed1ng \u1ede D\u00e2n S\u1ed1 Hoa K\u1ef3 S\u1eed D\u1ee5ng Gi\u00e1 Tr\u1ecb Caffeine \u0110\u1eb7c Tr\u01b0ng Theo Th\u01b0\u01a1ng Hi\u1ec7u Thay V\u00ec Theo Danh M\u1ee5c &#8211; PubMed<\/li>\n<li>\u0110\u00e1nh Gi\u00e1 C\u00f3 H\u1ec7 Th\u1ed1ng V\u1ec1 Caffeine V\u00e0 Gi\u1ea5c Ng\u1ee7 &#8211; PubMed<\/li>\n<\/ul>\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Why does drinking coffee right after waking sometimes leave me more tired later?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Coffee isn't bad for cortisol, but timing matters. 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Cold brew's long contact time and often higher coffee-to-water ratio make it significantly more potent.\"}}]}<\/script>\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/coffeefactz.com\/caffeine-content-coffee\/#webpage\",\"about\":[{\"name\":\"caffeine content of coffee\"}],\"mentions\":[{\"name\":\"caffeine\",\"sameAs\":\"https:\/\/www.google.com\/search?kgmid=\/m\/01_7l\"},{\"name\":\"caffeine effect\"},{\"name\":\"half-life\"},{\"name\":\"coffee bean\",\"sameAs\":\"https:\/\/www.google.com\/search?kgmid=\/m\/05bzrs\"},{\"name\":\"stimulant\",\"sameAs\":\"https:\/\/www.google.com\/search?kgmid=\/m\/0hk26\"}]}]}<\/script>","protected":false},"excerpt":{"rendered":"<p>H\u00e0m l\u01b0\u1ee3ng caffeine c\u1ee7a c\u00e0 ph\u00ea dao \u0111\u1ed9ng t\u1eeb 70 \u0111\u1ebfn h\u01a1n 200 miligram cho m\u1ed7i t\u00e1ch &#8211; m\u1ed9t kho\u1ea3ng c\u00e1ch \u0111\u1ee7 l\u1edbn \u0111\u1ec3 \u0111\u1ea9y m\u1ed9t ng\u01b0\u1eddi tr\u01b0\u1edfng th\u00e0nh kh\u1ecfe m\u1ea1nh v\u01b0\u1ee3t qua gi\u1edbi h\u1ea1n 400 mg m\u1ed7i ng\u00e0y c\u1ee7a FDA ngay c\u1ea3 khi bu\u1ed5i chi\u1ec1u c\u00f2n ch\u01b0a k\u1ebft th\u00fac. Ch\u00fang t\u00f4i s\u1ebd ph\u00e2n t\u00edch chi ti\u1ebft c\u00e1ch ph\u01b0\u01a1ng ph\u00e1p pha, gi\u1ed1ng h\u1ea1t, m\u1ee9c \u0111\u1ed9 rang v\u00e0 k\u00edch c\u1ee1 kh\u1ea9u ph\u1ea7n ki\u1ec3m so\u00e1t t\u1eebng miligram, \u0111\u1ec3 cu\u1ed1i c\u00f9ng b\u1ea1n c\u00f3 th\u1ec3 theo d\u00f5i l\u01b0\u1ee3ng n\u1ea1p v\u00e0o th\u1ef1c t\u1ebf h\u00e0ng ng\u00e0y c\u1ee7a m\u00ecnh m\u1ed9t c\u00e1ch chu\u1ea9n x\u00e1c.<\/p>\n","protected":false},"author":1,"featured_media":50277,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":"","_members_access_role":[],"_members_access_error":"","rank_math_title":"C\u00f3 Bao Nhi\u00eau Caffeine Trong M\u1ed9t T\u00e1ch C\u00e0 Ph\u00ea? | B\u1ea3ng Tham Kh\u1ea3o \u0110\u1ecbnh L\u01b0\u1ee3ng","rank_math_description":"Kh\u00e1m ph\u00e1 h\u00e0m l\u01b0\u1ee3ng caffeine ch\u00ednh x\u00e1c trong m\u1ed9t t\u00e1ch c\u00e0 ph\u00ea. 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Ch\u00fang t\u00f4i s\u1ebd ph\u00e2n t\u00edch&hellip;","_links":{"self":[{"href":"https:\/\/coffeefactz.com\/vi\/wp-json\/wp\/v2\/posts\/53897","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/coffeefactz.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/coffeefactz.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/coffeefactz.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/coffeefactz.com\/vi\/wp-json\/wp\/v2\/comments?post=53897"}],"version-history":[{"count":2,"href":"https:\/\/coffeefactz.com\/vi\/wp-json\/wp\/v2\/posts\/53897\/revisions"}],"predecessor-version":[{"id":53913,"href":"https:\/\/coffeefactz.com\/vi\/wp-json\/wp\/v2\/posts\/53897\/revisions\/53913"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/coffeefactz.com\/vi\/wp-json\/wp\/v2\/media\/50277"}],"wp:attachment":[{"href":"https:\/\/coffeefactz.com\/vi\/wp-json\/wp\/v2\/media?parent=53897"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/coffeefactz.com\/vi\/wp-json\/wp\/v2\/categories?post=53897"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/coffeefactz.com\/vi\/wp-json\/wp\/v2\/tags?post=53897"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}