Iidlangaladi zenzelwe ukukhusela ulusu lakho elangeni, ukucoca i- radivivice eyingozi. Ziyiyona ndlela yokuqala kunye neyona ndlela efanelekileyo yokukhusela ekugugeni kwangaphambi kwelanga, kodwa ngubani na onokuthi acingelwe ukuguga ?
Iimvini zelanga ziyakunceda ukukhusela iintlobo ezintathu zomonakalo emisebeni yelanga:
- Ukushona kwelanga
- Umhlaza wesikhumba
- Ukuguga kwangaphambili
Ingaba ezi zinto ziyakunceda ukuba ugweme imibimbi, amabala asebudala kunye nezinye iimpawu zokuguga kwesikhumba esingaphambi kwesikhumba kuxhomekeke kukuphi uhlobo lwemisebe ye-ultraviolet.
Iindidi ze- UV Radiation
Imibala e-Ultraviolet iqulethe iindidi ezintathu zemizila:
Nangona ii-UVA zombini kunye ne-UVB negalelo kumonakalo wesikhumba, ii-ray ze-UVA ziyaziwa ngokubangela ukuguga kwangaphambili kwesikhumba-kubangelwa imibimbi, ukuguquka kwesikhumba, kunye nokuguqulwa kwamagqabi. I-UVB ngokuyinhloko ixanduva lokukhupha isikhumba.
Ukukhusela ukuguga
Ngokumangalisayo, uphando oluncinane malunga nokuba i-sunscreen iyayithintela ukuguga kwesikhumba phambi ko-2013-okubonisa ubuncinane ukuba ukusetyenziswa kwe-sunscreen kusehlisa okanye kukuvimbela ukuguga kwesikhumba (ngaphandle kwamagundane angenazinwele).
Ukuvavanya ukuba i-suncreen ingakwazi ukuthintela imibimbi ebantwini, abaphandi base-Australia baqhuba isilingo esilawulwa ngokungaqhelekanga usebenzisa idatha evela kwi-Nambour Skin Cancer Prevention Trial. Ishicilelwe kwi- Annal of Medicine yangaphakathi , uphando lufanisa izifundo ezingu-903 zabantu abadala abahlukeneyo ngamaqela amane:
- Abo balelwa ukuba basebenzise i-sun-screen ebanzi ngokubanzi entanyeni, entanyeni, ezandleni, nasezandleni nganye intsasa nganye (kwaye kwakhona emva kokukhupha okanye ukuhlamba)
- Abo bangasebenzisa i-sunscreen efanayo xa befuna
- Izifundo ezifumana isongezelelo se-beta-carotene ngosuku ngalunye
- Abo banikwe isongezelelo se-placebo
Emva kweminyaka emine nesiqingatha, abaphandi bahlalutya imifanekiso yexesha elide elibanjwe ngasemva kwezandla zezifundo. Emva kokulungisa izinto ezinjengexabiso lokukhanya kwelanga kunye nokutshaya (okungaphaya kwesikhumba seminyaka yobudala), bafumanisa ukuba abo bantu abadala abasebenzisa i-sun-screen yelanga ebanzi babonisa "akukho kwanda okubonakalayo" ekugugeni kwesikhumba.
Ngaphezu koko, ukuguga kwesikhumba-njenge-skin coarser kunye nokugqithisa-ngexesha lexesha lokufunda kwatholakala ukuba ngama-24 eepesenti phakathi kwezifundo kwiqela lelanga le-sunscreen xa kuthelekiswa nezifundo usebenzisa iimveliso zelanga zesikrini kuphela kwi-discretionary basis. Ukongezwa nge-beta-carotene ayinaso niphumo elipheleleyo ekuguga kwesikhumba.
ILizwi
Ukuze ugweme ukuguga kwangaphambili kwesikhumba sakho, kufuneka usebenzise i-sunscreen echongiweyo ngokuthi "intambo ebanzi." Oku kuthetha ukuthintela ii-ray ze-UVA kunye ne-UVB, ngokungafani nento nje yokukhusela ilanga ( SPF ) eyenzelwe ukuvimba ukukhanya kwama-UVB. Ukususela ngo-2012, i-US Food and Drug Administration (i-FDA) yase-United States ifuna abavelisi be-sunscreen ukuba babone ukuba imveliso yabo inikezela ukukhuselwa kwebala.
I-American Academy yeDermatology (AAD) incoma i-sunscreen nge-SPF ubuncinane ubuncinane 30. Qaphela kwakhona izithako zelanga. Izithako ezicoca imilayezo ye-UVA ngokukodwa ziquka u-Avobenzone (iParsol 1789) kunye neBenzophenones. Izithako ezijolise ekuhlungeni imitha ye-UVB ziquka i-PABA, i-cinnamates kunye ne-salicylates.
Naluphi na umkhiqizo owukhethayo kufuneka usetyenziswe ngokukhululekile (malunga neyunithi okanye 15 ml) kwaye rhoqo (nganye iiyure ezimbini okanye njalo). Ekubeni akukho kreenscreen isingenakunqanda amanzi, kufuneka usebenzise kwakhona emva kokubhukuda okanye imisebenzi eyenza ujeze.
Ukongeza, ii-AAD kunye nezinye i-arhente zezempilo zincoma ukuphuma kwelanga ngethuba le-UV-hours-hours 10-2 pm-nezinye iindlela ezifana nokugqoka iimpahla zokukhusela ukukhupha, ukutshisa ilanga kunye nomhlaza wesikhumba.
> Imithombo:
> I-FDA Ukukhangela Ukukhanya kwi-Sunscreens. I-US Yokutya kunye nezoLawulo lweeDrug. Julayi 15, 2013.
> Hughes, uMaria Celia B; Williams, Gail M; Baker, Peter; Uluhlaza, uAdèle C. "I-Sunscreen kunye nokukhusela ukuguga kwesibatho, ukulingwa kwe-Random". Amanqaku angamayeza angaphakathi. 06/2013; 158 (11): 781-790.
> Iimviwo ze-Sunscreen. I-American Academy yeDermatology I-Information Information Sheet. Julayi 15, 2013.