Umphumela welanga esikhunjeni
-Delile
Dlala ividiyo yezempilo: //medlineplus.gov/ency/videos/mov/200100_eng.mp4Kuyini lokhu? Dlala ividiyo yezempilo nencazelo yomsindo: //medlineplus.gov/ency/videos/mov/200100_eng_ad.mp4Ukubuka konke
Isikhumba sisebenzisa ukukhanya kwelanga ukusiza ukukhiqiza uvithamini D, obalulekile ekwakhekeni kwamathambo okujwayelekile. Kodwa kukhona okubi. Ukukhanya kwelanga kwe-ultraviolet kungadala umonakalo omkhulu esikhunjeni. Isendlalelo sangaphandle sesikhumba sinamaseli aqukethe i-pigment melanin. I-Melanin ivikela isikhumba emisebeni yelanga ye-ultraviolet. Lezi zingashisa isikhumba futhi zinciphise ukuqina kwazo, okuholela ekugugeni ngaphambi kwesikhathi.
I-People tan ngoba ukukhanya kwelanga kubangela isikhumba ukuthi sikhiqize i-melanin eningi futhi kube mnyama. I-tan iyaphela lapho amangqamuzana amasha ehambela phezulu futhi amangqamuzana ashukiwe ancishisiwe. Ukukhanya kwelanga okuthile kungaba kuhle uma nje unokuvikela okufanelekile ekuvezweni ngokweqile. Kodwa i-ultraviolet, noma i-UV ngokweqile, ukuchayeka kungadala ukushiswa yilanga. Imisebe ye-UV ingena ezingqimbeni zesikhumba sangaphandle bese ishaya izingqimba ezijulile zesikhumba, lapho zingalimaza noma zibulale amangqamuzana esikhumba.
Abantu, ikakhulukazi labo abangenayo i-melanin eningi futhi abashiswa yilanga kalula, kufanele bazivikele. Ungazivikela ngokumboza izindawo ezizwelayo, ngokufaka isivimbelo selanga, ukunciphisa isikhathi sokuvezwa okuphelele, nokugwema ilanga phakathi kuka-10 ekuseni no-2 ntambama.
Ukutholakala kaningi emisebeni ye-ultraviolet eminyakeni eminingi iyimbangela eyinhloko yomdlavuza wesikhumba. Nomdlavuza wesikhumba akufanele uthathwe kalula.
Hlola isikhumba sakho njalo ukuthola ukukhula okusolisayo noma olunye ushintsho lwesikhumba. Ukutholwa nokwelashwa kusenesikhathi kubalulekile ekwelapheni umdlavuza wesikhumba ngempumelelo.
- Ukuvezwa kwelanga
Sincoma Wena
Ukulungiswa kwe-aortic aneurysm esiswini - ukuvula - ukukhipha