{"id":544,"date":"2022-08-01T14:15:50","date_gmt":"2022-08-01T07:15:50","guid":{"rendered":"https:\/\/coolmaxvietnam.com\/?p=544"},"modified":"2022-08-01T14:15:50","modified_gmt":"2022-08-01T07:15:50","slug":"tai-sao-buc-xa-tia-uv-cao-hon-vao-mua-he","status":"publish","type":"post","link":"https:\/\/coolmaxvietnam.com\/?p=544","title":{"rendered":"G\u00f3c gi\u1ea3i \u0111\u00e1p th\u1eafc m\u1eafc: T\u1ea1i sao b\u1ee9c x\u1ea1 tia UV cao h\u01a1n v\u00e0o m\u00f9a h\u00e8?"},"content":{"rendered":"

Ch\u00fang ta th\u01b0\u1eddng hay \u0111\u1eb7t c\u00e2u h\u1ecfi r\u1eb1ng t\u1ea1i sao b\u1ee9c x\u1ea1 UV cao h\u01a1n v\u00e0o m\u00f9a h\u00e8? M\u00f9a h\u00e8 \u0111\u01b0\u1ee3c xem nh\u01b0 th\u1eddi \u0111i\u1ec3m c\u00f3 c\u01b0\u1eddng \u0111\u1ed9 \u00e1nh n\u1eafng m\u1eb7t tr\u1eddi m\u1ea1nh nh\u1ea5t trong n\u0103m. M\u1ee9c t\u1ed1i \u0111a b\u1ee9c x\u1ea1 c\u1ee7a tia UV l\u00e0 v\u00e0o kho\u1ea3ng th\u1eddi gian gi\u1eefa tr\u01b0a (t\u1eeb l\u00fac 10h s\u00e1ng \u0111\u1ebfn 4h chi\u1ec1u) trong ng\u00e0y h\u00e8. Khi ta ti\u1ebfp x\u00fac trong kho\u1ea3ng th\u1eddi gian d\u00e0i c\u00f3 th\u1ec3 g\u00e2y \u1ea3nh h\u01b0\u1edfng kh\u00f4ng t\u1ed1t \u0111\u1ebfn s\u1ee9c kh\u1ecfe. V\u1eady t\u1ea1i sao b\u1ee9c x\u1ea1 UV l\u1ea1i cao h\u01a1n v\u00e0o ng\u00e0y h\u00e8? H\u00e3y c\u00f9ng m\u00ecnh gi\u1ea3i \u0111\u00e1p nh\u1eefng kh\u00fac m\u1eafc trong b\u00e0i vi\u1ebft sau nh\u00e9.<\/span><\/p>\n

B\u1ee9c x\u1ea1 tia UV l\u00e0 g\u00ec?<\/b><\/h2>\n

\"T\u1ea1i<\/p>\n

B\u1ee9c x\u1ea1 tia UV ( tia c\u1ef1c t\u00edm) l\u00e0 m\u1ed9t d\u1ea1ng b\u1ee9c x\u1ea1 \u0111i\u1ec7n t\u1eeb \u0111\u1ebfn t\u1eeb m\u1eb7t tr\u1eddi hay c\u00e1c nh\u00e2n t\u1ed1 kh\u00e1c nh\u01b0 m\u1ecf h\u00e0n, gi\u01b0\u1eddng t\u1eafm n\u1eafng,\u2026 C\u1ee5m t\u1eeb c\u1ef1c t\u00edm trong tia c\u1ef1c t\u00edm c\u00f3 th\u1ec3 \u0111\u1ecbnh ngh\u0129a l\u00e0 b\u00ean tr\u00ean c\u1ee7a m\u00e0u t\u00edm. S\u1eafc t\u00edm l\u00e0 m\u00e0u s\u1eafc c\u00f3 b\u01b0\u1edbc s\u00f3ng ng\u1eafn nh\u1ea5t m\u00e0 m\u1eaft th\u01b0\u1eddng ta c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y. V\u00ec v\u01b0\u1ee3t ngo\u00e0i b\u01b0\u1edbc s\u00f3ng c\u1ee7a m\u00e0u t\u00edm, n\u00ean nh\u1eefng tia UV l\u00e0 lo\u1ea1i tia v\u00f4 h\u00ecnh v\u1edbi m\u1eaft ng\u01b0\u1eddi.<\/span><\/p>\n

Tia UV l\u00e0 lo\u1ea1i s\u00f3ng \u0111i\u1ec7n t\u1eeb c\u00f3 b\u01b0\u1edbc s\u00f3ng ng\u1eafn h\u01a1n b\u01b0\u1edbc s\u00f3ng c\u1ee7a \u00e1nh s\u00e1ng khi nh\u00ecn th\u1ea5y nh\u01b0ng d\u00e0i h\u01a1n b\u01b0\u1edbc s\u00f3ng c\u1ee7a tia X. Quang ph\u1ed5 (d\u1ea3i t\u1ea5t c\u1ea3 c\u00e1c t\u1ea7n s\u1ed1 c\u00f3 kh\u1ea3 n\u0103ng c\u00f3 b\u1ee9c x\u1ea1 \u0111i\u1ec7n t\u1eeb) c\u1ee7a tia c\u1ef1c t\u00edm c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e2n ra th\u00e0nh 2 v\u00f9ng tia: v\u00f9ng t\u1eed ngo\u1ea1i g\u1ea7n v\u00e0 v\u00f9ng t\u1eed ngo\u1ea1i x\u1ea1 hay c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 v\u00f9ng t\u1eed ngo\u1ea1i ch\u00e2n kh\u00f4ng.<\/span><\/p>\n

Khi ta n\u00f3i \u0111\u1ebfn nh\u1eefng \u1ea3nh h\u01b0\u1edfng c\u1ee7a b\u1ee9c x\u1ea1 tia UV \u0111\u1ebfn s\u1ee9c kh\u1ecfe con ng\u01b0\u1eddi v\u00e0 m\u00f4i tr\u01b0\u1eddng th\u00ec tia UV \u0111\u01b0\u1ee3c ph\u00e2n ra l\u00e0m 3 lo\u1ea1i:<\/span><\/p>\n

Tia UVA (c\u00f3 b\u01b0\u1edbc s\u00f3ng t\u1eeb 380 – 315 nm) c\u00f2n hay \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 s\u00f3ng d\u00e0i ho\u1eb7c \u00e1nh s\u00e1ng \u0111en.<\/span><\/p>\n

Tia UVB (c\u00f3 b\u01b0\u1edbc s\u00f3ng 315 – 280 nm) hay \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 s\u00f3ng trung.<\/span><\/p>\n

Tia UVC (c\u00f3 b\u01b0\u1edbc s\u00f3ng ng\u1eafn h\u01a1n 280 nm) hay c\u00f2n g\u1ecdi l\u00e0 s\u00f3ng ng\u1eafn ho\u1eb7cs\u00f3ng c\u00f3 t\u00ednh ti\u1ec7t tr\u00f9ng.<\/span><\/p>\n

B\u1ee9c x\u1ea1 tia UV c\u00f3 \u1edf \u0111\u00e2u?<\/b><\/h2>\n

Tia UV (tia c\u1ef1c t\u00edm) l\u00e0 b\u1ee9c x\u1ea1 \u0111i\u1ec7n t\u1eeb do \u00e1nh n\u1eafng c\u1ee7a m\u1eb7t tr\u1eddi ph\u00e1t ra. Tia c\u1ef1c t\u00edm chi\u1ebfm \u0111\u1ebfn 10% trong l\u01b0\u1ee3ng \u00e1nh n\u1eafng m\u1eb7t tr\u1eddi chi\u1ebfu xu\u1ed1ng m\u1eb7t \u0111\u1ea5t.<\/span><\/p>\n

Tia UV c\u00f3 \u1edf ngo\u00e0i tr\u1eddi n\u1eafng: Khi ta ti\u1ebfp x\u00fac m\u1ed9t c\u00e1ch tr\u1ef1c ti\u1ebfp v\u1edbi \u00e1nh n\u1eafng m\u1eb7t tr\u1eddi th\u00ec t\u00e1c \u0111\u1ed9ng c\u1ee7a tia m\u1ea1nh nh\u1ea5t \u0111\u1ed1i v\u1edbi da.<\/span><\/p>\n

Tia UV c\u00f3 \u1edf trong b\u00f3ng r\u00e2m: Khi tr\u1eddi c\u00f3 b\u00f3ng r\u00e2m m\u00e1t, ho\u1eb7c khi ta \u0111\u1ee9ng \u1edf n\u01a1i c\u00f3 m\u00e1i che hay \u1edf b\u00f3ng c\u00e2y th\u00ec tia UV v\u1eabn c\u00f3 nh\u1eefng t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn da, nh\u01b0ng \u1edf m\u1ee9c \u0111\u1ed9 nh\u1eb9 h\u01a1n khi ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp v\u1edbi \u00e1nh n\u1eafng m\u1eb7t tr\u1eddi.<\/span><\/p>\n

Tia UV c\u00f2n c\u00f3 th\u1ec3 xuy\u00ean qua k\u00ednh v\u00e0 t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn c\u01a1 th\u1ec3 ch\u00fang ta ngay khi \u1edf trong nh\u1eefng nh\u00e0 k\u00ednh.<\/span><\/p>\n

C\u00e1c ngu\u1ed3n tia UV nh\u00e2n t\u1ea1o: v\u00ed d\u1ee5 c\u00f3 trong c\u00e1c lo\u1ea1i \u0111\u00e8n hu\u1ef3nh quang, \u0111\u00e8n halogen…<\/span><\/p>\n

B\u1ee9c x\u1ea1 tia UV g\u00e2y ra c\u00e1c t\u00e1c h\u1ea1i g\u00ec?<\/b><\/h2>\n

M\u1ed9t s\u1ed1 \u1ea3nh h\u01b0\u1edfng x\u1ea5u c\u1ee7a b\u1ee9c x\u1ea1 tia UV c\u00f3 th\u1ec3 k\u1ec3 \u0111\u1ebfn nh\u01b0 sau:<\/span><\/p>\n

G\u00e2y ung th\u01b0 da<\/b><\/h3>\n

\"T\u1ea1i<\/p>\n

Tia UV l\u00e0 nguy\u00ean nh\u00e2n g\u00e2y ra ung th\u01b0 n\u1ed5i b\u1eadt v\u00e0 ph\u1ed5 bi\u1ebfn nh\u1ea5t trong m\u00f4i tr\u01b0\u1eddng, v\u00ec khi ta ti\u1ebfp x\u00fac qu\u00e1 l\u00e2u v\u1edbi \u00e1nh s\u00e1ng m\u1eb7t tr\u1eddi c\u00f3 th\u1ec3 g\u00e2y ra kh\u1ea3 n\u0103ng ung th\u01b0 bi\u1ec3u m\u00f4 t\u1ebf b\u00e0o \u0111\u00e1y, ung th\u01b0 bi\u1ec3u m\u00f4 t\u1ebf b\u00e0o v\u1ea3y v\u00e0 h\u00ecnh th\u00e0nh n\u00ean c\u00e1c kh\u1ed1i u \u00e1c t\u00ednh.\u00a0<\/span><\/p>\n

G\u00e2y n\u00ean ch\u00e1y n\u1eafng<\/b><\/h3>\n

Ch\u00e1y n\u1eafng l\u00e0 m\u1ed9t t\u00ecnh tr\u1ea1ng v\u1ebft b\u1ecfng x\u1ea3y ra khi c\u00e1c t\u1ebf b\u00e0o da b\u1ecb t\u1ed5n th\u01b0\u01a1ng, t\u00ecnh tr\u1ea1ng n\u00e0y th\u01b0\u1eddng l\u00e0 do da h\u1ea5p th\u1ee5 n\u0103ng l\u01b0\u1ee3ng t\u1eeb tia UV. Khi \u0111\u00f3, m\u00e1u s\u1ebd ch\u1ea3y th\u00eam v\u00e0o c\u00e1c v\u00f9ng da b\u1ecb t\u1ed5n th\u01b0\u01a1ng \u0111\u1ec3 ch\u1eefa l\u00e0nh. \u0110\u00f3 l\u00e0 l\u00fd do v\u00ec sao da c\u1ee7a ch\u00fang ta s\u1ebd chuy\u1ec3n sang m\u00e0u \u0111\u1ecf khi b\u1ecb ch\u00e1y n\u1eafng.<\/span><\/p>\n

\u0110i\u1ec1u \u0111\u1eb7c bi\u1ec7t b\u1ea1n kh\u00f4ng n\u00ean ch\u1ee7 quan v\u00ec t\u00ecnh tr\u1ea1ng n\u00e0y c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn da b\u1ecb b\u1ecfng r\u00e1t nghi\u00eam tr\u1ecdng. Th\u1eadm ch\u00ed, \u1ea3nh h\u01b0\u1edfng c\u1ee7a tia UV c\u00f2n g\u00e2y ra nh\u1eefng h\u1eadu qu\u1ea3 v\u1ec1 l\u00e2u d\u00e0i cho l\u00e0n da nh\u01b0 t\u1ea1o c\u00e1c n\u1ebfp nh\u0103n v\u00e0 ung th\u01b0 da ho\u1eb7c t\u00e1c \u0111\u1ed9ng tr\u1ef1c ti\u1ebfp t\u1edbi DNA c\u1ee7a da.<\/span><\/p>\n

L\u00e0m gi\u1ea3m h\u1ec7 th\u1ed1ng mi\u1ec5n d\u1ecbch<\/b><\/h3>\n

\"T\u1ea1i<\/p>\n

Khi ta ti\u1ebfp x\u00fac trong th\u1eddi gian d\u00e0i v\u1edbi b\u1ee9c x\u1ea1 UV c\u00f3 th\u1ec3 g\u00e2y \u1ee9c ch\u1ebf t\u00e1c \u0111\u1ed9ng x\u1ea5u \u0111\u1ebfn h\u1ec7 mi\u1ec5n d\u1ecbch. C\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 ch\u1ec9 ra r\u1eb1ng ch\u00e1y n\u1eafng c\u00f3 th\u1ec3 l\u00e0m thay \u0111\u1ed5i s\u1ef1 ph\u00e2n b\u1ed1 v\u00e0 ch\u1ee9c n\u0103ng c\u1ee7a c\u00e1c t\u1ebf b\u00e0o b\u1ea1ch c\u1ea7u \u1edf ng\u01b0\u1eddi trong v\u00f2ng 24 gi\u1edd sau khi ch\u00fang ta ti\u1ebfp x\u00fac v\u1edbi \u00e1nh n\u1eafng m\u1eb7t tr\u1eddi.<\/span><\/p>\n

T\u00ecnh tr\u1ea1ng n\u00e0y s\u1ebd l\u1eb7p \u0111i l\u1eb7p l\u1ea1i qu\u00e1 nhi\u1ec1u v\u1edbi b\u1ee9c x\u1ea1 UV c\u00f3 th\u1ec3 g\u00e2y ra t\u1ed5n th\u01b0\u01a1ng l\u1edbn tr\u1ea7m tr\u1ecdng h\u01a1n cho h\u1ec7 th\u1ed1ng mi\u1ec5n d\u1ecbch c\u1ee7a c\u01a1 th\u1ec3.<\/span><\/p>\n

G\u00e2y t\u1ed5n th\u01b0\u01a1ng m\u1eaft<\/b><\/h3>\n

Khi ra ngo\u00e0i ti\u1ebfp x\u00fac l\u00e2u d\u00e0i v\u1edbi tia c\u1ef1c t\u00edm ho\u1eb7c c\u01b0\u1eddng \u0111\u1ed9 cao c\u1ee7a tia c\u1ef1c t\u00edm s\u1ebd d\u1eabn \u0111\u1ebfn l\u00e0m h\u1ecfng c\u00e1c m\u00f4, g\u00e2y \u201cb\u1ecfng\u201d tr\u00ean b\u1ec1 m\u1eb7t m\u1eaft, \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 tuy\u1ebft m\u00f9 (snow blindness) ho\u1eb7c c\u00f3 th\u1ec3 l\u00e0 vi\u00eam gi\u00e1c m\u1ea1c \u00e1nh n\u1eafng (photokeratitis) nguy hi\u1ec3m c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn t\u00ecnh tr\u1ea1ng \u0111\u1ee5c th\u1ee7y tinh th\u1ec3.<\/span><\/p>\n

Khi\u1ebfn da tr\u1edf n\u00ean l\u00e3o h\u00f3a<\/b>\u00a0<\/span><\/h3>\n

Tia c\u1ef1c t\u00edm c\u00f3 th\u1ec3 c\u00f3 kh\u1ea3 n\u0103ng ph\u00e1 h\u1ee7y collagen v\u00e0 c\u00e1c m\u00f4 li\u00ean k\u1ebft b\u00ean d\u01b0\u1edbi l\u1edbp tr\u00ean c\u00f9ng c\u1ee7a da, g\u00e2y n\u00ean n\u1ebfp nh\u0103n, \u0111\u1ed1m m\u00e0u n\u00e2u v\u00e0 m\u1ea5t \u0111\u1ed9 \u0111\u00e0n h\u1ed3i t\u1ef1 nhi\u00ean cho da. M\u1ed9t l\u00e0n da r\u00e1m n\u1eafng tr\u00f4ng c\u00f3 th\u1ec3 \u1ed5n trong th\u1eddi \u0111i\u1ec3m hi\u1ec7n t\u1ea1i, nh\u01b0ng v\u1ec1 sau l\u00e0n da s\u1ebd s\u1edbm tr\u1edf n\u00ean nh\u0103n nheo.<\/span><\/p>\n

\u0110i\u1ec3m kh\u00e1c bi\u1ec7t gi\u1eefa tone m\u00e0u da, c\u00e1c n\u1ebfp nh\u0103n ho\u1eb7c s\u1eafc t\u1ed1 \u1edf m\u1eb7t d\u01b0\u1edbi v\u00e0 m\u1eb7t tr\u00ean c\u00f9ng \u1edf c\u00e1nh tay \u0111\u00e3 cho ta th\u1ea5y t\u00e1c \u0111\u1ed9ng c\u1ee7a \u00e1nh n\u1eafng m\u1eb7t tr\u1eddi l\u00ean b\u1ec1 m\u1eb7t da. M\u1ed9t l\u00e0n da r\u00e1m n\u1eafng c\u00f3 th\u1ec3 l\u00e0 t\u1ea1m \u1ed5n trong hi\u1ec7n t\u1ea1i, nh\u01b0ng v\u1ec1 sau l\u00e0n da c\u1ee7a b\u1ea1n s\u1ebd s\u1edbm nh\u0103n nheo, c\u00f3 th\u1ec3 g\u00e2y ung th\u01b0 da.<\/span><\/p>\n

T\u1ea1i sao b\u1ee9c x\u1ea1 tia UV l\u1ea1i cao h\u01a1n v\u00e0o m\u00f9a h\u00e8?<\/b><\/h2>\n

\"T\u1ea1i<\/p>\n

Do \u0111\u1ed9 cao c\u1ee7a m\u1eb7t tr\u1eddi<\/b><\/h3>\n

B\u1ee9c x\u1ea1 tia UV s\u1ebd l\u00e0m bi\u1ebfn \u0111\u1ed5i theo th\u1eddi gian trong m\u1ed9t ng\u00e0y v\u00e0 trong n\u0103m. M\u1eb7t tr\u1eddi c\u00e0ng \u0111\u1ee9ng b\u00f3ng th\u00ec m\u1ee9c \u0111\u1ed9 c\u1ee7a b\u1ee9c x\u1ea1 tia UV c\u00e0ng l\u1edbn. Cho n\u00ean, trong ng\u00e0y tia c\u1ef1c t\u00edm th\u01b0\u1eddng cao nh\u1ea5t v\u00e0o kho\u1ea3ng 10h s\u00e1ng \u0111\u1ebfn 16h chi\u1ec1u, \u0111\u1eb7c bi\u1ec7t l\u00e0 nh\u1eefng ng\u00e0y cu\u1ed1i m\u00f9a xu\u00e2n, m\u00f9a h\u00e8, \u0111\u1ea7u m\u00f9a thu.\u00a0<\/span><\/p>\n

Do \u0111\u1ed9 che ph\u1ee7 c\u1ee7a m\u00e2y<\/b><\/h3>\n

Trong th\u1ef1c t\u1ebf, b\u1ee9c x\u1ea1 tia UV s\u1ebd cao nh\u1ea5t khi b\u1ea7u tr\u1eddi quang \u0111\u00e3ng. \u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao b\u1ee9c x\u1ea1 UV cao h\u01a1n v\u00e0o m\u00f9a h\u00e8. Tuy v\u1eady \u0111\u00f4i khi, ngay c\u1ea3 l\u00fac tr\u1eddi c\u00f3 nhi\u1ec1u m\u00e2y th\u00ec b\u1ee9c x\u1ea1 UV v\u1eabn c\u00f3 th\u1ec3 cao do s\u1ef1 t\u00e1n x\u1ea1 tia UV. H\u1ea7u h\u1ebft, b\u00f3ng r\u00e2m c\u1ee7a \u0111\u00e1m m\u00e2y kh\u00f4ng th\u1ec3 n\u00e0o l\u00e0m gi\u1ea3m s\u1ef1 t\u00e1c \u0111\u1ed9ng c\u1ee7a tia UV. Do \u0111\u00f3 c\u00e1c tia UV v\u1eabn c\u00f3 th\u1ec3 g\u00e2y \u1ea3nh h\u01b0\u1edfng x\u1ea5u \u0111\u1ebfn l\u00e0n da v\u00e0 m\u1eaft trong nh\u1eefng ng\u00e0y nhi\u1ec1u m\u00e2y v\u00e0 m\u00f9a \u0111\u00f4ng.<\/span><\/p>\n

Do v\u0129 \u0111\u1ed9<\/b><\/h3>\n

Khi c\u00e0ng l\u1ea1i g\u1ea7n x\u00edch \u0111\u1ea1o th\u00ec b\u1ee9c x\u1ea1 UV c\u00e0ng \u1edf m\u1ee9c cao v\u00e0 ng\u01b0\u1ee3c l\u1ea1i. B\u1ee9c x\u1ea1 tia UV s\u1ebd b\u1ecb n\u00e2ng l\u00ean t\u1ea1i c\u00e1c v\u0129 \u0111\u1ed9 th\u1ea5p (g\u1ea7n \u0111\u01b0\u1eddng x\u00edch \u0111\u1ea1o). \u0110\u1eb7c bi\u1ec7t khi v\u00e0o m\u00f9a h\u00e8, gi\u1eefa tr\u01b0a \u0111\u1ebfn x\u1ebf chi\u1ec1u \u00e1nh s\u00e1ng m\u1eb7t tr\u1eddi s\u1ebd \u0111i qua b\u1ea7u kh\u00ed quy\u1ec3n th\u1eb3ng h\u01a1n, l\u01b0\u1ee3ng b\u1ee9c x\u1ea1 UV c\u0169ng v\u00ec v\u1eady m\u00e0 cao h\u01a1n.<\/span><\/p>\n

C\u00e1c gi\u1ea3i ph\u00e1p b\u1ea3o v\u1ec7 da ch\u1ed1ng tia UV<\/b><\/h2>\n

H\u1ea1n ch\u1ebf ti\u1ebfp x\u00fac ngo\u00e0i d\u01b0\u1edbi \u00e1nh n\u1eafng m\u1eb7t tr\u1eddi<\/b>\u00a0<\/span><\/h3>\n

\u0110\u00e2y l\u00e0 gi\u1ea3i ph\u00e1p \u0111\u01a1n gi\u1ea3n gi\u00fap b\u1ea1n c\u00f3 th\u1ec3 ng\u0103n ng\u1eeba t\u00ecnh tr\u1ea1ng ch\u00e1y n\u1eafng v\u00e0 h\u1ea1n ch\u1ebf s\u1ef1 t\u00e1c \u0111\u1ed9ng c\u1ee7a \u00e1nh s\u00e1ng m\u1eb7t tr\u1eddi. Gi\u1ea3i ph\u00e1p n\u00e0y \u0111\u01b0\u1ee3c khuy\u1ebfn kh\u00edch ph\u00f9 h\u1ee3p cho m\u1ecdi lo\u1ea1i da, \u0111\u1eb7c bi\u1ec7t l\u00e0 ng\u01b0\u1eddi c\u00f3 da m\u1ecfng nh\u1ea1y c\u1ea3m v\u00e0 d\u1ec5 b\u1ecb ch\u00e1y n\u1eafng. M\u1eb7c d\u00f9, \u00e1nh n\u1eafng c\u1ee7a m\u1eb7t tr\u1eddi c\u00f3 th\u1ec3 gi\u00fap t\u1ea1o ra <\/span>vitamin D<\/span>, tuy nhi\u00ean ch\u00fang ta n\u00ean ph\u01a1i n\u1eafng v\u00e0o bu\u1ed5i s\u00e1ng s\u1edbm, khi b\u1ee9c x\u1ea1 tia UV c\u00f2n \u0111ang y\u1ebfu.\u00a0<\/span><\/p>\n

Trang b\u1ecb qu\u1ea7n \u00e1o b\u1ea3o h\u1ed9<\/b><\/h3>\n

Tia UV khi ti\u1ebfp x\u00fac v\u1edbi l\u00e0n da c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c gi\u1ea3m thi\u1ec3u khi b\u1ea1n s\u1eed d\u1ee5ng l\u1edbp m\u1ed9t b\u1ea3o v\u1ec7 nh\u01b0 \u00e1o n\u00f3n, \u00e1o ch\u1ed1ng n\u1eafng, qu\u1ea7n d\u00e0i. Ngo\u00e0i ra khi s\u1eed d\u1ee5ng m\u0169 r\u1ed9ng v\u00e0nh c\u0169ng c\u00f3 th\u1ec3 gi\u00fap b\u1ea3o v\u1ec7 da \u0111\u1ea7u, da m\u1eb7t, tai v\u00e0 c\u1ed5. Vi\u1ec7c s\u1eed d\u1ee5ng th\u01b0\u1eddng xuy\u00ean k\u00ednh m\u1eaft ch\u1ed1ng tia c\u1ef1c t\u00edm, k\u00ednh b\u1ea3o h\u1ed9 khi ra \u0111\u01b0\u1eddng s\u1ebd gi\u00fap b\u1ea3o v\u1ec7 \u0111\u01b0\u1ee3c m\u1eaft v\u00e0 m\u00ed m\u1eaft.<\/span><\/p>\n

B\u00f4i kem ch\u1ed1ng n\u1eafng<\/b><\/h3>\n

D\u00f9 \u1edf trong nh\u00e0 hay ra ngo\u00e0i \u0111\u01b0\u1eddng b\u1ea1n n\u00ean s\u1eed d\u1ee5ng kem ch\u1ed1ng n\u1eafng h\u00e0ng ng\u00e0y \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o l\u00e0n da c\u1ee7a m\u00ecnh \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 an to\u00e0n tr\u01b0\u1edbc c\u00e1c tia UV \u0111\u1ed9c h\u1ea1i. Khi ch\u1ecdn lo\u1ea1i kem ch\u1ed1ng n\u1eafng b\u1ea1n n\u00ean ch\u00fa \u00fd \u0111\u1ebfn ch\u1ec9 s\u1ed1 SPF, ch\u1ec9 s\u1ed1 \u0111\u00f3 c\u00e0ng cao th\u00ec c\u00e0ng c\u00f3 th\u1ec3 gi\u00fap b\u1ea1n ng\u0103n ch\u1eb7n \u0111\u01b0\u1ee3c tia \u0111\u01b0\u1ee3c UVA v\u00e0 UVB \u0111\u1ed9c h\u1ea1i g\u00e2y \u1ea3nh h\u01b0\u1edfng x\u1ea5u cho da. V\u00ec v\u1eady khi l\u1ef1a ch\u1ecdn s\u1ea3n ph\u1ea9m, b\u1ea1n n\u00ean ch\u1ecdn lo\u1ea1i c\u00f3 \u0111\u1ed9 SPF t\u1eeb 30 tr\u1edf l\u00ean \u0111\u1ec3 ch\u1ed1ng l\u1ea1i b\u1ee9c x\u1ea1 tia UV hi\u1ec7u qu\u1ea3 h\u01a1n.<\/span><\/p>\n

U\u1ed1ng nhi\u1ec1u n\u01b0\u1edbc<\/b><\/h3>\n

B\u00ean c\u1ea1nh c\u00e1c c\u00e1ch \u0111\u1ec3 b\u1ea3o v\u1ec7 da t\u1eeb b\u00ean ngo\u00e0i th\u00ec ch\u00fang ta c\u0169ng n\u00ean b\u1ed5 sung u\u1ed1ng \u0111\u1ee7 n\u01b0\u1edbc m\u1ed7i ng\u00e0y gi\u00fap l\u00e0n da kh\u1ecfe \u0111\u1eb9p h\u01a1n t\u1eeb b\u00ean trong. L\u00e0n da \u0111\u1ee7 \u0111\u1ed9 \u1ea9m ch\u00ednh l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p n\u00e2ng cao kh\u1ea3 n\u0103ng ch\u1ed1ng n\u1eafng c\u1ee7a l\u00e0n da, h\u1ea1n ch\u1ebf t\u00ecnh tr\u1ea1ng kh\u00f4 da, da s\u1ea1m m\u00e0u \u0111\u1eb7c bi\u1ec7t trong th\u1eddi ti\u1ebft h\u00e8 n\u1eafng n\u00f3ng.<\/span><\/p>\n

D\u00e1n phim c\u00e1ch nhi\u1ec7t<\/b><\/h3>\n

\"T\u1ea1i<\/p>\n

\u0110\u00e2y l\u00e0 s\u1ef1 l\u1ef1a ch\u1ecdn tuy\u1ec7t v\u1eddi b\u1ea1n c\u00f3 th\u1ec3 t\u1eadn d\u1ee5ng b\u1ea3o v\u1ec7 cho m\u00e1i \u1ea5m gia \u0111\u00ecnh c\u1ee7a m\u00ecnh trong ng\u00e0y h\u00e8 n\u00f3ng b\u1ee9c. D\u00e1n phim c\u00e1ch nhi\u1ec7t<\/a> c\u00f3 th\u1ec3 l\u00e0m ch\u1eadm qu\u00e1 tr\u00ecnh truy\u1ec1n nhi\u1ec7t t\u1ea1o \u0111i\u1ec1u ki\u1ec7n cho c\u00e1c thi\u1ebft b\u1ecb l\u00e0m m\u00e1t \u1edf trong c\u00e1c ph\u00f2ng, lo\u1ea1i b\u1ecf \u0111\u01b0\u1ee3c c\u00e1c tia b\u1ee9c x\u1ea1 UV \u0111\u1ed9c h\u1ea1i l\u00e0m t\u1ed5n th\u01b0\u01a1ng da, ch\u1ed1ng ch\u00f3i l\u00f3a \u0111\u1ed3ng th\u1eddi c\u00f2n l\u00e0m gi\u1ea3m chi ph\u00ed ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng.<\/span><\/p>\n

L\u1eddi k\u1ebft<\/b><\/h2>\n

Tr\u00ean \u0111\u00e2y l\u00e0 nh\u1eefng gi\u1ea3i \u0111\u00e1p th\u1eafc m\u1eafc \u201cT\u1ea1i sao b\u1ee9c x\u1ea1 UV l\u1ea1i cao h\u01a1n v\u00e0o m\u00f9a h\u00e8? V\u1edbi nh\u1eefng th\u00f4ng tin b\u1ed5 \u00edch tr\u00ean, hy v\u1ecdng trong nh\u1eefng ng\u00e0y h\u00e8 n\u00f3ng b\u1ee9c, b\u1ea1n c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng c\u00e1c bi\u1ec7n ph\u00e1p b\u1ea3o v\u1ec7 cho s\u1ee9c kh\u1ecfe l\u00e0n da c\u1ee7a m\u00ecnh \u0111\u1ec3 tr\u00e1nh t\u00e1c h\u1ea1i c\u1ee7a b\u1ee9c x\u1ea1 tia UV nh\u00e9!<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Ch\u00fang ta th\u01b0\u1eddng hay \u0111\u1eb7t c\u00e2u h\u1ecfi r\u1eb1ng t\u1ea1i sao […]<\/p>\n","protected":false},"author":1,"featured_media":548,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[71],"tags":[],"class_list":["post-544","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"_links":{"self":[{"href":"https:\/\/coolmaxvietnam.com\/index.php?rest_route=\/wp\/v2\/posts\/544","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/coolmaxvietnam.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/coolmaxvietnam.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/coolmaxvietnam.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/coolmaxvietnam.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=544"}],"version-history":[{"count":3,"href":"https:\/\/coolmaxvietnam.com\/index.php?rest_route=\/wp\/v2\/posts\/544\/revisions"}],"predecessor-version":[{"id":552,"href":"https:\/\/coolmaxvietnam.com\/index.php?rest_route=\/wp\/v2\/posts\/544\/revisions\/552"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/coolmaxvietnam.com\/index.php?rest_route=\/wp\/v2\/media\/548"}],"wp:attachment":[{"href":"https:\/\/coolmaxvietnam.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=544"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/coolmaxvietnam.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=544"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/coolmaxvietnam.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=544"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}