T\u1eafc k\u00e8 hoa l\u00e0 m\u1ed9t lo\u00e0i \u0111\u1ed9ng v\u1eadt b\u00f2 s\u00e1t, s\u1ed1ng \u1edf trong c\u00e1c r\u1eebng c\u00e2y nh\u01b0 \u1edf Ma\u0111agatxca, l\u1ee5c \u0111\u1ecba Ch\u00e2u Phi, Anatolia, \u1ea5n \u0110\u1ed9\u2026 N\u00f3 th\u01b0\u1eddng ch\u1edd \u0111\u1ee3i l\u1eb7ng l\u1ebd tr\u00ean c\u00e0nh c\u00e2y, hai m\u1eaft \u0111\u1ea3o \u0111i \u0111\u1ea3o l\u1ea1i theo c\u00e1c h\u01b0\u1edbng kh\u00e1c \u0111\u1ec3 quan s\u00e1t. Khi c\u00f4n tr\u00f9ng bay d\u1ea7n \u0111\u1ebfn th\u00ec s\u1ebd nhanh ch\u00f3ng v\u01b0\u01a1n chi\u1ebfc l\u01b0\u1ee1i d\u00e0i m\u00e0 ph\u00eda \u0111\u1ea7u l\u01b0\u1ee1i ph\u00ecnh to, c\u00f3 th\u1ec3 ti\u1ebft ra d\u1ecbch d\u00ednh \u0111\u1ec3 b\u1eaft c\u00f4n tr\u00f9ng.<\/p>\n\n\n\n
Nguy\u00ean nh\u00e2n t\u1eafc k\u00e8 hoa c\u00f3 t\u00ean g\u1ecdi k\u00ec l\u1ea1 n\u00e0y l\u00e0 b\u1edfi v\u00ec m\u00e0u s\u1eafc c\u01a1 th\u1ec3 c\u1ee7a ch\u00fang hay thay \u0111\u1ed5i. V\u1eady th\u00ec t\u1ea1i sao n\u00f3 c\u00f3 th\u1ec3 \u0111\u1ed5i m\u00e0u \u0111\u01b0\u1ee3c nh\u1ec9? Trong \u0111i\u1ec1u ki\u1ec7n n\u00e0o th\u00ec n\u00f3 \u0111\u1ed5i m\u00e0u v\u1eady?<\/p>\n\n\n\n
Hi\u1ec7n nay, ch\u00fang ta \u0111\u00e3 bi\u1ebft trong m\u00f4i tr\u01b0\u1eddng sinh t\u1ed3n c\u1ee7a ch\u00fang nh\u01b0 \u00e1nh s\u00e1ng, nhi\u1ec7t \u0111\u1ed9, \u0111\u1ed9 \u1ea9m c\u00f3 s\u1ef1 thay \u0111\u1ed5i, hay ch\u1ecbu s\u1ef1 \u1ea3nh h\u01b0\u1edfng nh\u01b0 s\u1ee3 h\u00e3i\u2026, t\u1ebf b\u00e0o s\u1eafc t\u1ed1 trong da c\u1ee7a ch\u00fang s\u1ebd c\u00f3 s\u1ef1 d\u1ecbch chuy\u1ec3n, do \u0111\u00f3 d\u1eabn \u0111\u1ebfn s\u1ef1 thay \u0111\u1ed5i v\u1ec1 m\u00e0u s\u1eafc. \u0110\u00e2y l\u00e0 m\u1ed9t ki\u1ec3u th\u00edch nghi c\u1ee7a \u0111\u1ed9ng v\u1eadt s\u1ed1ng trong m\u00f4i tr\u01b0\u1eddng t\u1ef1 nhi\u00ean.<\/p>\n\n\n\n
Gi\u1eefa bi\u1ec3u b\u00ec v\u00e0 ch\u00e2n b\u00ec c\u1ee7a t\u1eafc k\u00e8 hoa c\u00f3 t\u1ebf b\u00e0o s\u1eafc t\u1ed1 ph\u00e2n t\u00e1n, ch\u1ecbu s\u1ef1 kh\u1ed1ng ch\u1ebf c\u1ee7a th\u1ea7n kinh v\u00e0 ho\u00f3c m\u00f4n, th\u1ec3 hi\u1ec7n m\u00e0u s\u1eafc \u0111\u1eadm nh\u1ea1t kh\u00e1c nhau. Do s\u1ef1 ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u00e1c t\u1ebf b\u00e0o s\u1eafc t\u1ed1, v\u00e0 t\u00e1c d\u1ee5ng t\u01b0\u01a1ng h\u1ed7 l\u1eabn nhau s\u1ebd c\u00f3 s\u1ef1 thay \u0111\u1ed5i v\u1ec1 m\u00e0u s\u1eafc. Nh\u01b0 khi t\u1ebf b\u00e0o s\u1eafc t\u1ed1 \u0111en khu\u1ebfch tr\u01b0\u01a1ng, \u0111a s\u1ed1 s\u1eabm l\u1ea1i, hai lo\u1ea1i t\u1ebf b\u00e0o s\u1eafc t\u1ed1 \u0111en v\u00e0 v\u00e0ng \u0111\u1ed3ng th\u1eddi thu h\u1eb9p, tr\u00ean da hi\u1ec7n r\u00f5 m\u00e0u x\u00e1m.<\/p>\n\n\n\n
Trong t\u1ebf b\u00e0o s\u1eafc t\u1ed1 \u0111en c\u00f3 ch\u1ee9a nh\u00e2n t\u1ebf b\u00e0o v\u00e0 nh\u1eefng h\u1ea1t nh\u1ecf m\u00e0u n\u00e2u \u0111en \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 s\u1eafc t\u1ed1 \u0111en. H\u1ea1t s\u1eafc t\u1ed1 c\u00f3 th\u1ec3 di chuy\u1ec3n trong t\u1ebf b\u00e0o, khi m\u1edf r\u1ed9ng ra th\u00ec da hi\u1ec7n r\u00f5 m\u00e0u s\u1eafc kh\u00e1 s\u1eabm. T\u1ebf b\u00e0o s\u1eafc t\u1ed1 \u0111en c\u0169ng c\u00f3 th\u1ec3 v\u1eadn \u0111\u1ed9ng v\u01b0\u01a1n ch\u00e2n gi\u1ea3 ra gi\u1ed1ng nh\u01b0 c\u00f4n tr\u00f9ng bi\u1ebfn h\u00ecnh, khi ch\u00e2n gi\u1ea3 co l\u1ea1i m\u00e0u s\u1eafc c\u01a1 th\u1ec3 nh\u1ea1t \u0111i. T\u1ebf b\u00e0o s\u1eafc t\u1ed1 tr\u1eafng d\u01b0\u1edbi s\u1ef1 chi\u1ebfu r\u1ecdi \u00e1nh s\u00e1ng v\u1edbi c\u01b0\u1eddng \u0111\u1ed9 kh\u00e1c nhau, tr\u00ean da \u00e1nh l\u00ean m\u00e0u x\u00e1m n\u00e2u ho\u1eb7c m\u00e0u xanh x\u00e1m. T\u1ebf b\u00e0o s\u1eafc t\u1ed1 v\u00e0ng c\u00f3 th\u1ec3 l\u00e0m cho da bi\u1ebfn th\u00e0nh m\u00e0u v\u00e0ng hay m\u00e0u xanh l\u1ee5c. S\u1ef1 gi\u00e3n ra v\u00e0 co l\u1ea1i c\u1ee7a t\u1ebf b\u00e0o s\u1eafc t\u1ed1 h\u1ed3ng c\u00f3 th\u1ec3 \u0111i\u1ec1u ti\u1ebft \u0111\u01b0\u1ee3c m\u1ee9c \u0111\u1ed9 v\u00e0 s\u1ef1 ph\u00e2n b\u1ed1 c\u1ee7a m\u00e0u h\u1ed3ng. C\u00f3 ng\u01b0\u1eddi \u0111\u00e3 t\u1eebng l\u00e0m qua h\u00e0ng lo\u1ea1t c\u00e1c cu\u1ed9c th\u1eed nghi\u1ec7m, khi t\u1eafc k\u00e8 hoa b\u1ecb chi\u1ebfu d\u01b0\u1edbi \u00e1nh s\u00e1ng m\u1ea1nh, m\u00e0u s\u1eafc c\u01a1 th\u1ec3 r\u1ea5t nh\u1ea1t; khi n\u00f3 \u1edf trong m\u00f4i tr\u01b0\u1eddng t\u1ed1i th\u00ec m\u00e0u s\u1eafc c\u01a1 th\u1ec3 s\u1eabm l\u1ea1i. C\u0169ng c\u00f3 ng\u01b0\u1eddi cho r\u1eb1ng khi nhi\u1ec7t \u0111\u1ed9 t\u0103ng cao l\u00e0m cho c\u00e1c s\u1eafc t\u1ed1 thu h\u1eb9p l\u1ea1i, m\u00e0u da bi\u1ebfn th\u00e0nh m\u00e0u nh\u1ea1t; sau khi nhi\u1ec7t \u0111\u1ed9 h\u1ea1 th\u1ea5p, s\u1eafc t\u1ed1 da m\u1edf r\u1ed9ng ra, m\u00e0u da th\u1eabm l\u1ea1i, khi kh\u00f4 r\u00e1o m\u00e0u da tr\u1edf n\u00ean tr\u1eafng b\u1ec7ch. Khi b\u1ecb s\u1ef1 \u1ea3nh h\u01b0\u1edfng c\u1ee7a c\u00e1c lo\u1ea1i d\u01b0\u1ee3c ph\u1ea9m ho\u00e1 h\u1ecdc c\u0169ng c\u00f3 th\u1ec3 l\u00e0m cho \u0111\u1ed9ng v\u1eadt \u0111\u1ed5i m\u00e0u. Ngo\u00e0i nh\u1eefng nh\u00e2n t\u1ed1 t\u1ef1 nhi\u00ean \u0111a d\u1ea1ng \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp ra, nh\u1eefng k\u00edch th\u00edch t\u1ed1 m\u00e0 tuy\u1ebfn y\u00ean d\u01b0\u1edbi n\u00e3o ti\u1ebft ra c\u00f3 t\u00e1c d\u1ee5ng r\u1ea5t l\u1edbn \u0111\u1ed1i v\u1edbi vi\u1ec7c tr\u00e1nh \u0111\u1ed5i m\u00e0u s\u1eafc, m\u00e0 m\u1ee9c \u0111\u1ed9 c\u1ee7a l\u01b0\u1ee3ng k\u00edch th\u00edch t\u1ed1 ti\u1ebft ra c\u00f3 li\u00ean quan v\u1edbi tr\u01b0\u1eddng h\u1ee3p k\u00edch th\u00edch th\u1ea7n kinh kh\u00e1c nhau. Do v\u1eady, s\u1ef1 thay \u0111\u1ed5i c\u1ee7a m\u00e0u da \u0111\u1ec3 ph\u00f2ng v\u1ec7 c\u0169ng gi\u00e1n ti\u1ebfp ch\u1ecbu s\u1ef1 kh\u1ed1ng ch\u1ebf c\u1ee7a h\u1ec7 th\u1ed1ng th\u1ea7n kinh.<\/p>\n","protected":false},"excerpt":{"rendered":"
T\u1eafc k\u00e8 hoa l\u00e0 m\u1ed9t lo\u00e0i \u0111\u1ed9ng v\u1eadt b\u00f2 s\u00e1t, s\u1ed1ng \u1edf trong c\u00e1c r\u1eebng c\u00e2y nh\u01b0 \u1edf Ma\u0111agatxca, l\u1ee5c \u0111\u1ecba Ch\u00e2u Phi, Anatolia, \u1ea5n \u0110\u1ed9\u2026 N\u00f3 th\u01b0\u1eddng ch\u1edd \u0111\u1ee3i l\u1eb7ng l\u1ebd tr\u00ean c\u00e0nh c\u00e2y, hai m\u1eaft \u0111\u1ea3o \u0111i \u0111\u1ea3o l\u1ea1i theo c\u00e1c h\u01b0\u1edbng kh\u00e1c \u0111\u1ec3 quan s\u00e1t. Khi c\u00f4n tr\u00f9ng bay d\u1ea7n \u0111\u1ebfn th\u00ec […]<\/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":[15,10],"tags":[],"class_list":["post-8473","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc","category-sinh-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/8473","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=8473"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/8473\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=8473"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=8473"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=8473"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}