I-sunscreen ingase yehlise amathuba akho okukhulelwa
Abesilisa nabesifazane bobabili bavame ukukhuthazwa ukuba bagqoke i-sunscreen ukuze bavikele isikhumba sabo ekulimazweni yilanga futhi banciphise ingozi yomdlavuza wesikhumba. Kodwa-ke, ucwaningo olusha oluvela eNyuvesi yaseCopenhagen lukhombisa ukuthi eminye imithi equkethwe ku-sunscreen ingaphazamisa ukusebenza kwe-sidoda. Abacwaningi basola ukuthi lokhu kungaba ngesinye sezizathu zokungazali okukhulu emadodeni. Nakuba lolu cwaningo lusa lusha, kubalulekile ukuthi amadoda, ikakhulukazi lawo acabanga ukuqala imindeni, azi ngemiphumela engemihle engase ibangelwe i-sunscreen.
Izithako ze-chemical sunscreen
Izithako okukhulunywa ngazo yizi-UV filters zamakhemikhali. Inhloso yalezi zihluzo ukuhogela imisebe ye-ultraviolet futhi ziyivimbele ekutheni ithinte isikhumba. Kodwa-ke, ezinye zalezi zihluzo zamakhemikhali zingangena esikhunjeni zifike egazini. Abacwaningi bahlola izihlungi ezingu-29 kwezi-31 ezivunyelwe kuma-sunscreen e-United States nase-European Union ngokuzifaka emasampulini esidoda anempilo. Bathola ukuthi u-45% wama-UV filters uphazamisa ukusebenza kwamangqamuzana esidoda.
Ngaphezu kwalokho, u-69% walezi zihluzo ezithinta isidoda zilingise imiphumela yehomoni yabesifazane ebizwa ngokuthi i-progesterone. Uma inzalo ejwayelekile yenzeka, i-progesterone idonsa isidoda ilibheke eqandeni lomfazi futhi isize isidoda lifinyelele eqandeni. Ngenxa yokuthi ama-UV filters alingisa i-progesterone, angaphazamisa le nqubo yemvelo. Ucwaningo luthole ukuthi le miphumela evimbelayo iqala ngisho nasezingeni eliphansi kakhulu lamakhemikhali, “ngaphansi kwamazinga amanye ama-UV filters atholakala ebantwini ngemuva kokufakwa kwe-sunscreen emzimbeni wonke,” kusho umcwaningi omkhulu wocwaningo u-Niels Skakkebaek.
Esitatimendeni sentatheli, uSkakkebaek waphawula wathi, “Lemiphumela iyakhathaza futhi ingachaza ngokwengxenye ukuthi kungani ukungazali okungenasizathu kuch распространile kangaka.” Ama-UV filters iqembu eliwahlolile ayizithako ezivunyiwe kuma-sunscreen e-U.S. naseYurophu ngakho athinta inani elikhulu lamadoda. Ngakho-ke, abacwaningi bacele kube khona olunye ucwaningo mayelana nemithelela yama-UV filters ekuzaleni. Bakholwa ukuthi le miphumela kufanele ifundwe ngokuseduze ngaphambi kokuba amakhemikhali avunyelwe ukusetshenziswa.
Ukuphepha elangeni kusahlale kuyinto ebalulekile
Ochwepheshe bezempilo abakhathazeke ngobungozi bomdlavuza wesikhumba, nokho, bakhuthaza amadoda ukuba angayeki ukusebenzisa i-sunscreen. I-American Academy of Dermatology igcizelele ukuthi “kudinga olunye ucwaningo ukuze kunqunywe ukuthi ukusetshenziswa kwe-sunscreen kungase kuthinte yini ukukhona kokuzala kubantu.” Ucwaningo lweNyuvesi yaseCopenhagen luselusha futhi alusakashicilelwa ephephabhukwini lesayensi elibuyekezwa ngososayensi ozakwabo. Imiphumela yabo izodinga ukuhlaziywa ngokuningiliziwe, kwenziwe nolunye ucwaningo, ngaphambi kokuba ososayensi bakwazi ukwenza iziphetho eziqinile mayelana nemiphumela engemihle engase ibangelwe i-sunscreen. Kodwa-ke, i-Academy isikisela ukuthi amadoda akhathazeke ngokuzala angase akhethe ukusebenzisa i-sunscreen esebenzisa i-zinc oxide noma i-titanium dioxide esikhundleni sama-chemical UV filters. Le ndlela inganciphisa ubungozi bokungazali kanye nomdlavuza wesikhumba.
