Izinzipho zejeli zithandwa kakhulu kulezi zinsuku, ikakhulukazi phakathi kwamantombazane nabesifazane abasebasha. Kulula ukuya esalon bese upenda izinzipho zakho ngombala omuhle, bese uzifaka emshinini wokukhanya okuluhlaza okwesibhakabhaka ukuze uzomise ngokushesha, futhi i-nail polish ihlala inhle isikhathi eside. Kodwa wake wacabanga ukuthi ngemuva kwalowo kukhanya okuluhlaza okwesibhakabhaka, kungase kube nokuthile esingakwazi ukukubona ngamehlo ethu, futhi okudingeka sikucabange kancane? Yilokho esizokhuluma ngakho namuhla.
Kuyini ngempela lokhu kukhanya kwe-UV?
Kalula nje, lo mshini wokomisa izinzipho ukhipha imisebe ye-ultraviolet , noma lokho esikubiza ngokuthi imisebe ye- (Ultraviolet - UV) . Uma uzwa lokhu, cishe ucabanga ngemisebe ye-UV elangeni. Yebo, lolu uhlobo olufanayo lwemisebe. Siyazi ukuthi imisebe ye-UV ingabangela isikhumba sethu ukuba sishise, sishwabane ngokuhamba kwesikhathi, futhi ibangele ngisho nomdlavuza wesikhumba .
Lezi zomisi ze-UV ezisetshenziswa ezindaweni zokucwala izinwele ziqukethe uhlobo lwemisebe ebizwa ngokuthi i-UV-A. Lezi yizo ezisabela ngamakhemikhali akwi-gel nail polish bese ziqina ngokushesha zibe yisimo esijiyile nesicwebezelayo. Sekuyisikhathi eside kukhulunywa kakhulu ngengozi yomdlavuza yemisebe ye-UV evela emibhedeni yokushiswa kwesikhumba. Ngakho-ke, ososayensi babe nombuzo othi, "Ngakho-ke ingabe lokhu kukhanya kwe-UV okomisa izinzipho kuyingozi ngendlela efanayo?"
Ucwaningo lwakamuva lwembule ini?
Muva nje, iqembu labacwaningi abavela eNyuvesi yaseCalifornia, e-USA, liqale ukuphenya ngalokhu. Imiphumela yocwaningo lwabo yanyatheliswa ephephabhukwini lesayensi elidumile elithi 'Nature Communications'. Uma ufunda lokhu, kukushiya nokuthile ongakucabanga.
Cabanga ngalokhu. Lokho abacwaningi abakwenzile ukukhulisa uhlobo lweseli, njengamaseli ethu esikhumba, esitsheni se-petri elabhorethri, bese beveza lawo maseli ekukhanyeni kwe-UV, okuyikho okomisa izinzipho.
Imiphumela iyamangaza kancane.
- Ngemva kwemizuzu engama-20 yokuchayeka njalo ekukhanyeni kwe-UV, cishe ama-30% alawo maseli afa .
- Ngemva kwezikhathi ezintathu ezinjalo, inani lamaseli afile likhuphuke phakathi kuka-65% no-70% .
Lokho kusho ukuthi le misebe ye-UV inamandla okubhubhisa amangqamuzana esikhumba sethu.
Kodwa indaba ayipheli lapho. Lapho kuhlolwa amangqamuzana asindayo, abacwaningi bathole ukuthi nawo alimele. Ikakhulukazi, i-DNA , egcina ulwazi lwezakhi zofuzo lweseli, kanye ne- mitochondria , esebenza njengezimboni zamandla zeseli, yonakele. Bathole nokuthi ezinye zezinguquko (ukuguqulwa kwezakhi zofuzo) ezenzeka lapho i-DNA yonakele ngale ndlela zifana nalezo ezibonakala emangqamuzaneni omdlavuza wesikhumba.
Ngakho-ke kufanele sesabe manje? Iyini ingozi yangempela?
Kulungile, ukufunda lokhu kungase kukwethuse. Ungase ucabange, "O, ngithola izinzipho zejeli kanye ngesonto, ingabe nami ngizoba nomdlavuza?"
Linda, ungakhathazeki. Ake sicacise izinto ezimbalwa.
Okokuqala: Lolu ucwaningo olwenziwe elebhu kusetshenziswa amaseli. Abacwaningi ngokwabo bathi kudingeka olunye ucwaningo lwesikhathi eside, mhlawumbe oluthatha iminyaka eyishumi , ukuze kutholakale ukuthi lokhu kuzothinta kanjani izandla zabantu empilweni yangempela.
Okwesibili futhi okubaluleke kakhulu: Ingozi incike ekutheni uvame kangakanani ukuyizwa . Cabanga ngakho, kunomehluko omkhulu phakathi kwengozi yomuntu oya emshadweni kanye ngonyaka futhi alungise izinzipho zejeli, kanye nengozi yomuntu oya esalon kanye njalo emavikini amabili. Ngokuchayeka ngokuphindaphindiwe emisebeni ye-UV, umonakalo esikhumbeni uyanda ('umonakalo oqongelelekayo').
Nokho, lokhu akunakuthathwa kalula. Abacwaningi baphetha ngokuthi, "Kunobufakazi obuqinile bokuthi imisebe ekhishwa yilezi zomisi zezinzipho ze-UV ingase ibe nomthelela kumdlavuza wesikhumba wezandla."
Yini engingayenza ukuze ngizivikele?
"Kulungile, ngakho-ke kufanele ngiyeke ukwenza izinzipho zejeli ngokuphelele?" ungase uzibuze. Lutho neze. Kodwa, kungcono uma sikwenza lokhu ngokuhlakanipha nangokuphepha. Ngezansi kunezinye izinto ezilula ongazenza.
| Indlela ephephile | Okufanele ngikwenze |
|---|---|
| Nciphisa imvamisa | Esikhundleni sokwenza izinzipho zejeli masonto onke, zikhawulele emicimbini ekhethekile. Lokho kusho ukunciphisa inani lezikhathi oziveza ngazo. |
| Sebenzisa isivikelo selanga. | Cishe imizuzu engama-20 ngaphambi kokuya esalon, gcoba inani elikhulu le-sunscreen ezandleni zakho. Khetha eyodwa ene-widespectrum futhi ene-SPF engama-30 noma ngaphezulu. |
| Gqoka amagilavu okuzivikela. | Kukhona amagilavu avikela i-UV enzelwe ngqo le njongo, eneminwe kuphela ebonakalayo. Gqoka lawa ngaphambi kokufaka izinzipho zejeli. |
| Cabanga ngezinye izinketho | Uma ukhathazekile kakhulu ngalokhu, ungasebenzisa ama-nail polishes avamile okomisa umoya angadingi ukukhanya kwe-UV. |
| Nakekela isikhumba sakho. | Hlola izandla zakho njalo ukuze ubone amabala amasha, izinhlungu, noma izinguquko embala noma usayizi wamabala akhona. Uma ubona noma yini esolisayo, bona udokotela wakho ngokushesha . |
Ikakhulukazi uma othile emndenini wakho eke waba nomdlavuza wesikhumba, noma uma unesikhumba esikhanyayo esishisa kalula, kubaluleke kakhulu ukucabanga kabili ngale ngozi bese ukhuluma nodokotela wakho ngayo ngaphambi kokufaka izinzipho zejeli.
Umlayezo Wokuya Nawe Ekhaya
- Imishini yokomisa izinzipho ye-UV eyomisa ijeli ikhipha imisebe ye-UV-A engalimaza amangqamuzana esikhumba.
- Ucwaningo lwamuva nje lubonise ukuthi le misebe ingabangela ukufa kwamangqamuzana futhi yonakalise i-DNA yamangqamuzana asele, okungase kwandise ingozi yomdlavuza wesikhumba.
- Le ngozi incike ngqo ekutheni uwasebenzisa kangaki la madivayisi. Ukusetshenziswa njalo kwandisa ingozi.
- Ungesabi, hlakanipha. Izindlela ezilula njengokunciphisa ukusetshenziswa, ukufaka i-sunscreen, nokugqoka amagilavu okuzivikela kungakusiza ukuthi uvikeleke.
- Uma ubona noma yiziphi izinguquko ezingavamile esikhumbeni ezandleni zakho noma uma unemibuzo, xhumana nodokotela wakho ngokushesha.
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