Uma ubheka kuqala, imibhede yokushiswa kwesikhumba kanye nokukhanya kwelanga kwemvelo kungase kubonakale kufana—kokubili kwenza isikhumba sibe mnyama futhi kuncike emisebeni ye-ultraviolet (UV). Kodwa-ke,abafani, futhi ukuqonda umehluko kubalulekile empilweni yesikhumba.
Umehluko we-UV Spectrum
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Ukukhanya kwelangaikhipha ububanzi obuhlukahlukene bemisebe ye-UV:
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I-UVA(ukuguga, umonakalo wesikhathi eside)
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I-UVB(ukushiswa yilanga, ukukhiqizwa kwevithamini D)
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Imibhede yokushiswa kwesikhumbakhipha:
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Ngokuvamile i-UVA (kufika ku-95–99%)
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I-UVB encane kakhulu
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Lokhu kungalingani kusho ukuthi imibhede yokushiswa kwesikhumba igxile ekushintsheni kombala okusheshayo kunezinqubo zemvelo zezinto eziphilayo.
Ukulawula Ukuqina Nokuchayeka
Ukuchayeka elangeni kuyahlukahluka kuye ngokuthi:
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Isikhathi sosuku
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Isizini
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Indawo
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Izimo zezulu
Imibhede yokushiswa kwesikhumba iletha:
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I-UV eqinile, enamandla aphezulu
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Izikhathi ezimfushane kodwa ezigxile
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Ukushiswa kwesikhumba okusheshayo kanye nokucindezeleka kwesikhumba okwandisiwe
Isikhathi esifushane sangaphakathi singalingana namahora elanga elinamandla emini.
Ukuqhathaniswa Kokulimala Kwesikhumba
Kokubili imibhede yokushiswa kwelanga kanye nelanga kungenza lokhu okulandelayo:
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Amaseli esikhumba onakele
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Hlukanisa i-collagen
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Yandisa izinkinga zokushintsha umbala
Kodwa-ke, imibhede yokushiswa kwesikhumba ingabangelaumonakalo omkhulu wesikhumbangenxa yokuchayeka okuqinile kwe-UVA.
Isinqumo Sokugcina
Cha, umbhede wokushiswa kwesikhumba uyintoakufani nelangaNakuba zombili zisebenzisa imisebe ye-UV, imibhede yokushiswa kwesikhumba inikeza ukuvezwa okunamandla nokungalingani okwandisa izingozi zesikhumba zesikhathi eside.
Imibuzo Evame Ukubuzwa
Ingabe indawo yokushiswa kwesikhumba inikeza i-vitamin D njengelanga?
Kuncane kakhulu. Imibhede yokushiswa kwesikhumba ayinayo i-UVB eyanele.
Ingabe ukushiswa kwesikhumba endlini kuphephile kunelanga langaphandle?
Cha. Ukushiswa kwesikhumba endlini akubhekwa njengokuphephile.