{"id":15776,"date":"2021-11-27T18:52:48","date_gmt":"2021-11-27T11:52:48","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=15776"},"modified":"2021-11-27T18:52:50","modified_gmt":"2021-11-27T11:52:50","slug":"tai-sao-toc-co-nhieu-mau-khac-nhau","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/tai-sao-toc-co-nhieu-mau-khac-nhau\/","title":{"rendered":"T\u1ea1i sao t\u00f3c c\u00f3 nhi\u1ec1u m\u00e0u kh\u00e1c nhau?"},"content":{"rendered":"\n<p>T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: H\u00e3y Tr\u1ea3 L\u1eddi Em T\u1ea1i Sao? \u2013 T\u1eadp 10 &#8211; Arkady Leokum<\/p>\n\n\n\n<p>Qu\u00e1 tr\u00ecnh m\u1ecdc t\u00f3c l\u00e0 m\u1ed9t \u0111i\u1ec1u th\u00edch th\u00fa. T\u00f3c ph\u00e1t tri\u1ec3n t\u1eeb l\u1edbp da s\u1eebng, d\u0129 nhi\u00ean l\u00e0 m\u1ecdc s\u00e2u xu\u1ed1ng. Khi ch\u00e2n t\u00f3c \u0111\u00e3 v\u1eefng, t\u00f3c m\u1ecdc l\u00ean xuy\u00ean qua c\u00e1c l\u1edbp da.<\/p>\n\n\n\n<p>T\u00f3c, c\u0169ng gi\u1ed1ng nh\u01b0 c\u00e1c l\u1edbp th\u01b0\u1ee3ng b\u00ec n\u01a1i t\u00f3c ph\u00e1t tri\u1ec3n, c\u00f3 m\u1ed9t m\u00f4 t\u1ebf b\u00e0o l\u00e0m n\u01a1i b\u1eaft ngu\u1ed3n, t\u00f3c \u0111\u01b0\u1ee3c nu\u00f4i d\u01b0\u1ee1ng v\u00e0 m\u1ecdc l\u00ean t\u1eeb n\u01a1i \u1ea5y.<\/p>\n\n\n\n<p>Trong c\u00e1c t\u1ebf b\u00e0o \u1edf ch\u00e2n t\u00f3c c\u00f3 ch\u1ea5t nhu\u1ed9m m\u00e0u g\u1ecdi l\u00e0 melanin. Nh\u1eefng t\u1ebf b\u00e0o n\u00e0y (c\u0169ng gi\u1ed1ng c\u00e1c t\u1ebf b\u00e0o kh\u00e1c) sinh s\u00f4i n\u1ea3y n\u1edf c\u00f9ng v\u1edbi t\u00f3c khi t\u00f3c m\u1ecdc. Nh\u1eefng t\u1ebf b\u00e0o n\u00e0y ch\u1ebft v\u00e0 \u0111\u1ec3 l\u1ea1i nh\u1eefng h\u1ea1t m\u00e0u trong t\u00f3c.<\/p>\n\n\n\n<p>Nh\u1eefng h\u1ea1t m\u00e0u \u1ea5y t\u1ea5t c\u1ea3 \u0111\u1ec1u c\u00f3 s\u1eafc n\u00e2u, t\u1eeb m\u00e0u hung hung \u0111\u1ecf \u0111\u1ebfn m\u00e0u n\u00e2u \u0111en \u0111\u1eadm. L\u1edbp t\u00f3c c\u00f3 ch\u1ea5t s\u1eebng trong \u0111\u00f3 ch\u1ea5t nhu\u1ed9m m\u00e0u v\u1eabn g\u1eafn ch\u1eb7t, c\u00f3 m\u00e0u h\u01a1i v\u00e0ng. M\u00e0u c\u1ee7a ch\u1ea5t s\u1eebng v\u00e0 m\u00e0u c\u1ee7a nh\u1eefng h\u1ea1t m\u00e0u h\u00f2a quy\u1ec7n v\u1edbi nhau. \u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao m\u00e0u t\u00f3c c\u1ee7a ng\u01b0\u1eddi bi\u1ebfn \u0111\u1ed5i t\u1eeb v\u00e0ng hoe \u0111\u1ebfn \u0111en. Di truy\u1ec1n m\u00e0 ch\u00fang ta th\u1eeba h\u01b0\u1edfng, gi\u00fap quy\u1ebft \u0111\u1ecbnh s\u1eafc t\u00ednh c\u1ee7a h\u1ea1t m\u00e0u v\u00e0 r\u1ed3i t\u00f3c ta s\u1ebd c\u00f3 m\u00e0u nh\u01b0 th\u1ebf.<\/p>\n\n\n\n<p>M\u1ed9t ng\u01b0\u1eddi trung b\u00ecnh c\u00f3 t\u1eeb 300 \u0111\u1ebfn 500 ng\u00e0n s\u1ee3i t\u00f3c v\u00e0 l\u00f4ng tr\u00ean da. T\u00f3c c\u00f3 m\u00e0u v\u00e0ng hoe th\u01b0\u1eddng m\u1ec1m h\u01a1n v\u00e0 nhi\u1ec1u h\u01a1n t\u00f3c m\u00e0u kh\u00e1c. Ng\u01b0\u1eddi da s\u1eadm c\u00f3 t\u00f3c v\u00e0 l\u00f4ng th\u00f4 h\u01a1n v\u00e0 \u00edt h\u01a1n \u00bc so v\u1edbi m\u00e0u kh\u00e1c. Ng\u01b0\u1eddi c\u00f3 t\u00f3c \u0111\u1ecf, t\u00f3c v\u00e0 l\u00f4ng th\u01b0\u1eddng th\u00f4 h\u01a1n v\u00e0 \u00edt h\u01a1n.<\/p>\n\n\n\n<p>T\u00f3c c\u1ee7a b\u1ea1n t\u0103ng tr\u01b0\u1edfng v\u1edbi t\u1ed1c \u0111\u1ed9 13 mm m\u1ed9t th\u00e1ng. T\u00f3c m\u1ecdc theo t\u1ed1c \u0111\u1ed9 kh\u00e1c nhau \u1edf c\u00e1c th\u1eddi \u0111i\u1ec3m kh\u00e1c nhau trong ng\u00e0y.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: H\u00e3y Tr\u1ea3 L\u1eddi Em T\u1ea1i Sao? \u2013 T\u1eadp 10 &#8211; Arkady Leokum Qu\u00e1 tr\u00ecnh m\u1ecdc t\u00f3c l\u00e0 m\u1ed9t \u0111i\u1ec1u th\u00edch th\u00fa. T\u00f3c ph\u00e1t tri\u1ec3n t\u1eeb l\u1edbp da s\u1eebng, d\u0129 nhi\u00ean l\u00e0 m\u1ecdc s\u00e2u xu\u1ed1ng. Khi ch\u00e2n t\u00f3c \u0111\u00e3 v\u1eefng, t\u00f3c m\u1ecdc l\u00ean xuy\u00ean qua c\u00e1c l\u1edbp da. T\u00f3c, c\u0169ng gi\u1ed1ng nh\u01b0 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[15],"tags":[],"class_list":["post-15776","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/15776","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=15776"}],"version-history":[{"count":1,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/15776\/revisions"}],"predecessor-version":[{"id":15777,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/15776\/revisions\/15777"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=15776"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=15776"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=15776"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}