C\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 ph\u00e1t hi\u1ec7n ra r\u1eb1ng vi\u1ec7c u\u1ed1ng qu\u00e1 nhi\u1ec1u c\u00e0 ph\u00ea c\u00f3 th\u1ec3 ng\u0103n ch\u1eb7n kh\u1ea3 n\u0103ng ph\u1ee5c h\u1ed3i c\u1ee7a n\u00e3o sau t\u00ecnh tr\u1ea1ng thi\u1ebfu ng\u1ee7 m\u00e3n t\u00ednh.<\/p>\n
Caffeine l\u00e0 ch\u1ea5t h\u01b0\u1edbng th\u1ea7n \u0111\u01b0\u1ee3c ti\u00eau th\u1ee5 r\u1ed9ng r\u00e3i nh\u1ea5t tr\u00ean th\u1ebf gi\u1edbi, v\u1edbi kho\u1ea3ng hai ph\u1ea7n ba ng\u01b0\u1eddi l\u1edbn \u1edf M\u1ef9 u\u1ed1ng c\u00e0 ph\u00ea m\u1ed7i ng\u00e0y, theo Hi\u1ec7p H\u1ed9i C\u00e0 Ph\u00ea Qu\u1ed1c Gia (National Coffee Association).<\/p>\n
Lo\u1ea1i thu\u1ed1c n\u00e0y l\u00e0 ch\u1ea5t k\u00edch th\u00edch ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng c\u00e1ch ch\u1eb7n c\u00e1c th\u1ee5 th\u1ec3 c\u1ee7a m\u1ed9t ph\u00e2n t\u1eed g\u1ecdi l\u00e0 adenosine, \u0111\u01b0\u1ee3c c\u01a1 th\u1ec3 ph\u00f3ng th\u00edch \u0111\u1ec3 th\u00fac \u0111\u1ea9y c\u01a1n bu\u1ed3n ng\u1ee7.<\/p>\n
Ng\u1ee7 \u0111\u1ee7 gi\u1ea5c l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft cho s\u1ee9c kh\u1ecfe tinh th\u1ea7n v\u00e0 th\u1ec3 ch\u1ea5t c\u1ee7a m\u1ed7i ng\u01b0\u1eddi. Tuy nhi\u00ean, theo CDC, c\u1ee9 ba ng\u01b0\u1eddi l\u1edbn \u1edf Hoa K\u1ef3 th\u00ec c\u00f3 m\u1ed9t ng\u01b0\u1eddi kh\u00f4ng ng\u1ee7 \u0111\u1ee7 gi\u1ea5c.<\/p>\n
\u0110\u1ed1i v\u1edbi nhi\u1ec1u ng\u01b0\u1eddi, caffeine l\u00e0 m\u1ed9t ph\u01b0\u01a1ng thu\u1ed1c ch\u1ed1ng l\u1ea1i t\u00ecnh tr\u1ea1ng thi\u1ebfu ng\u1ee7 n\u00e0y. Tuy nhi\u00ean, theo m\u1ed9t kh\u00e1m ph\u00e1 m\u1edbi t\u1eeb Th\u1ee5y S\u0129 v\u00e0 \u0110\u1ee9c, vi\u1ec7c u\u1ed1ng n\u01b0\u1edbc \u00e9p \u0111\u1eadu v\u00e0o bu\u1ed5i s\u00e1ng l\u1ea1i g\u00e2y ph\u1ea3n t\u00e1c d\u1ee5ng.<\/p>\n
Ch\u1ec9 c\u1ea7n m\u1ed9t \u0111\u00eam thi\u1ebfu ng\u1ee7 \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng minh l\u00e0 l\u00e0m gi\u1ea3m kh\u1ed1i l\u01b0\u1ee3ng ch\u1ea5t x\u00e1m trong n\u00e3o, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u1edf c\u00e1c v\u00f9ng li\u00ean quan \u0111\u1ebfn tr\u00ed nh\u1edb, nh\u1eadn th\u1ee9c c\u1ea3m gi\u00e1c v\u00e0 t\u01b0 duy c\u00f3 \u00fd th\u1ee9c, nh\u01b0ng kh\u00f4ng r\u00f5 nh\u1eefng \u0111\u00eam li\u00ean ti\u1ebfp b\u1ecb h\u1ea1n ch\u1ebf gi\u1ea5c ng\u1ee7 c\u00f3 t\u00e1c \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o \u0111\u1ebfn s\u1ef1 thay \u0111\u1ed5i n\u00e0y trong ch\u1ea5t x\u00e1m v\u00e0 n\u00e3o ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o \u0111\u1ec3 ph\u1ee5c h\u1ed3i.<\/p>\n
H\u00ecnh minh h\u1ecda: najib-kalil\/Unsplash)<\/p>\n
Vi\u1ec7c ti\u00eau th\u1ee5 caffeine h\u00e0ng ng\u00e0y \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng minh l\u00e0 l\u00e0m gi\u1ea3m th\u1ec3 t\u00edch ch\u1ea5t x\u00e1m \u1edf l\u1edbp ngo\u00e0i c\u1ee7a n\u00e3o, c\u0169ng nh\u01b0 c\u00e1c v\u00f9ng li\u00ean quan \u0111\u1ebfn l\u01b0u tr\u1eef tr\u00ed nh\u1edb d\u00e0i h\u1ea1n.<\/p>\n
C\u00e1c t\u00e1c gi\u1ea3 vi\u1ebft: \u201cCh\u00fang t\u00f4i \u0111\u01b0a ra gi\u1ea3 thuy\u1ebft r\u1eb1ng ch\u1ea5t x\u00e1m s\u1ebd gi\u1ea3m sau khi b\u1ecb h\u1ea1n ch\u1ebf gi\u1ea5c ng\u1ee7 m\u00e3n t\u00ednh, trong khi l\u01b0\u1ee3ng caffeine \u0111i k\u00e8m l\u00e0 nguy\u00ean nh\u00e2n l\u00e0m tr\u1ea7m tr\u1ecdng th\u00eam t\u00ecnh tr\u1ea1ng gi\u1ea3m ch\u1ea5t x\u00e1m do h\u1ea1n ch\u1ebf gi\u1ea5c ng\u1ee7 m\u00e3n t\u00ednh g\u00e2y ra.\u201d<\/p>\n
\u0110\u1ec3 kh\u00e1m ph\u00e1 nh\u1eefng t\u00e1c \u0111\u1ed9ng n\u00e0y, nh\u00f3m \u0111\u00e3 tuy\u1ec3n d\u1ee5ng 36 ng\u01b0\u1eddi l\u1edbn kh\u1ecfe m\u1ea1nh c\u00f3 \u0111\u1ed9 tu\u1ed5i trung b\u00ecnh l\u00e0 29. M\u1ed7i ng\u01b0\u1eddi tham gia \u0111\u00e3 tr\u1ea3i qua chuy\u1ebfn th\u0103m ph\u00f2ng th\u00ed nghi\u1ec7m k\u00e9o d\u00e0i ch\u00edn ng\u00e0y bao g\u1ed3m m\u1ed9t ng\u00e0y th\u00edch nghi, hai ng\u00e0y ban \u0111\u1ea7u, n\u0103m ng\u00e0y h\u1ea1n ch\u1ebf gi\u1ea5c ng\u1ee7 (t\u1ee9c l\u00e0 n\u0103m ti\u1ebfng \u0111\u1ec3 ng\u1ee7) v\u00e0 m\u1ed9t ng\u00e0y ph\u1ee5c h\u1ed3i.<\/p>\n
Trong th\u1eddi gian h\u1ea1n ch\u1ebf gi\u1ea5c ng\u1ee7, 19 ng\u01b0\u1eddi tham gia u\u1ed1ng 300mg caffeine d\u01b0\u1edbi d\u1ea1ng ba ly c\u00e0 ph\u00ea m\u1ed7i ng\u00e0y, v\u00e0 17 ng\u01b0\u1eddi c\u00f9ng u\u1ed1ng m\u1ed9t l\u01b0\u1ee3ng c\u00e0 ph\u00ea kh\u00f4ng ch\u1ee9a caffeine.<\/p>\n
B\u1eb1ng c\u00e1ch nghi\u00ean c\u1ee9u d\u1eef li\u1ec7u MRI, \u0111\u01b0\u1ee3c ch\u1ee5p t\u1ea1i ba th\u1eddi \u0111i\u1ec3m trong su\u1ed1t qu\u00e1 tr\u00ecnh nghi\u00ean c\u1ee9u, nh\u00f3m c\u00e1c nh\u00e0 khoa h\u1ecdc ph\u00e1t hi\u1ec7n ra r\u1eb1ng, so v\u1edbi d\u1eef li\u1ec7u ban \u0111\u1ea7u, t\u00ecnh tr\u1ea1ng thi\u1ebfu ng\u1ee7 m\u00e3n t\u00ednh c\u00f3 li\u00ean quan \u0111\u1ebfn s\u1ef1 gia t\u0103ng ch\u1ea5t x\u00e1m \u1edf nhi\u1ec1u v\u00f9ng n\u00e3o kh\u00e1c nhau trong nh\u00f3m u\u1ed1ng c\u00e0 ph\u00ea kh\u00f4ng ch\u1ee9a caffein. C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u cho bi\u1ebft \u0111\u00e2y l\u00e0 d\u1ea5u hi\u1ec7u cho th\u1ea5y n\u00e3o ng\u01b0\u1eddi th\u00edch nghi v\u00e0 ch\u1ed1ng l\u1ea1i nh\u1eefng t\u00e1c \u0111\u1ed9ng ti\u00eau c\u1ef1c c\u1ee7a t\u00ecnh tr\u1ea1ng thi\u1ebfu ng\u1ee7.<\/p>\n
Tuy nhi\u00ean, nh\u1eefng ng\u01b0\u1eddi trong nh\u00f3m u\u1ed1ng c\u00e0 ph\u00ea cho th\u1ea5y t\u00ecnh tr\u1ea1ng gi\u1ea3m ch\u1ea5t x\u00e1m \u1edf nh\u1eefng v\u00f9ng n\u00e3o n\u00e0y.<\/p>\n
C\u00e1c nh\u00e0 khoa h\u1ecdc vi\u1ebft: \u201cNghi\u00ean c\u1ee9u n\u00e0y cho th\u1ea5y t\u00ednh d\u1ebbo v\u1ecf n\u00e3o c\u00f3 kh\u1ea3 n\u0103ng \u0111\u1ea3o ng\u01b0\u1ee3c \u1edf ch\u1ea5t x\u00e1m tr\u00e1n, th\u00e1i d\u01b0\u01a1ng-ch\u1ea9m v\u00e0 \u0111\u1ed3i th\u1ecb \u0111\u1ec3 \u0111\u00e1p \u1ee9ng v\u1edbi t\u00ecnh tr\u1ea1ng h\u1ea1n ch\u1ebf gi\u1ea5c ng\u1ee7 m\u00e3n t\u00ednh. Tuy nhi\u00ean, ph\u1ea3n \u1ee9ng d\u1ebbo n\u00e0y c\u00f3 th\u1ec3 b\u1ecb \u1ee9c ch\u1ebf ho\u1eb7c \u0111\u1ea3o ng\u01b0\u1ee3c b\u1eb1ng c\u00e1ch u\u1ed1ng c\u00e0 ph\u00ea m\u1ed9t c\u00e1ch \u0111\u1ed3ng th\u1eddi.\u201d<\/p>\n
To\u00e0n b\u1ed9 nghi\u00ean c\u1ee9u \u0111\u01b0\u1ee3c \u0111\u0103ng tr\u00ean t\u1ea1p ch\u00ed Nature, Scientific Reports.<\/p>\n
The post C\u00e0 ph\u00ea c\u1ea3n tr\u1edf n\u00e3o ph\u1ee5c h\u1ed3i sau khi thi\u1ebfu ng\u1ee7<\/a> appeared first on Saigon Nh\u1ecf<\/a>.<\/p>\n \u00a0<\/p>","protected":false},"excerpt":{"rendered":" C\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 ph\u00e1t hi\u1ec7n ra r\u1eb1ng vi\u1ec7c u\u1ed1ng qu\u00e1 nhi\u1ec1u c\u00e0 ph\u00ea c\u00f3 th\u1ec3 ng\u0103n ch\u1eb7n kh\u1ea3 n\u0103ng ph\u1ee5c h\u1ed3i c\u1ee7a n\u00e3o sau t\u00ecnh tr\u1ea1ng thi\u1ebfu ng\u1ee7 m\u00e3n t\u00ednh. Caffeine l\u00e0 ch\u1ea5t h\u01b0\u1edbng th\u1ea7n \u0111\u01b0\u1ee3c ti\u00eau th\u1ee5 r\u1ed9ng r\u00e3i nh\u1ea5t tr\u00ean th\u1ebf gi\u1edbi, v\u1edbi kho\u1ea3ng hai ph\u1ea7n ba ng\u01b0\u1eddi l\u1edbn \u1edf M\u1ef9 …<\/p>","protected":false},"author":0,"featured_media":52418,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[82,43],"tags":[],"class_list":["post-52417","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-society","category-health"],"_links":{"self":[{"href":"https:\/\/vietvalley.com\/en\/wp-json\/wp\/v2\/posts\/52417","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vietvalley.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vietvalley.com\/en\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/vietvalley.com\/en\/wp-json\/wp\/v2\/comments?post=52417"}],"version-history":[{"count":0,"href":"https:\/\/vietvalley.com\/en\/wp-json\/wp\/v2\/posts\/52417\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vietvalley.com\/en\/wp-json\/wp\/v2\/media\/52418"}],"wp:attachment":[{"href":"https:\/\/vietvalley.com\/en\/wp-json\/wp\/v2\/media?parent=52417"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vietvalley.com\/en\/wp-json\/wp\/v2\/categories?post=52417"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vietvalley.com\/en\/wp-json\/wp\/v2\/tags?post=52417"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}