Intshayelelo
Ibhedi yokuthambisa isikhumba sisixhobo esidumileyo esisetyenziselwa ukufumana inkangeleko egqatswa lilanga ngaphandle kokuchitha iiyure phantsi kwelanga lendalo. Isebenzisa izibane ezikhethekileyo ezikhupha ukukhanya kwe-ultraviolet (UV) ukukhuthaza ukuveliswa kwe-melanin eluswini, okukunika inkangeleko egqatswa lilanga.
1. Indlela Esebenza Ngayo Ibhedi Yokugquma Ulusu
Iibhedi zokufunxa ulusu zixhotyiswe ngezibane ze-fluorescent okanye iibhalbhu ezinoxinzelelo oluphezulu ezivelisa ubungakanani obulawulwayoI-UVAkwayeI-UVBimisebe.
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Imitha ye-UVA (315–400 nm)zingene nzulu eluswini, nto leyo ebangela ukuba kube mnyama ngoko nangoko.
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Imitha ye-UVB (280–315 nm)isebenza kumaleko angaphandle eluswini, ivuselela ukuveliswa kwe-melanin entsha ukuze ihlale ixesha elide.
Xa ulusu lwakho lufunxa le misebe, ii-melanocytes (iiseli ezivelisa i-pigment) zisebenza ngakumbi, nto leyo ekhokelela kumbala omnyama.
2. Iintlobo zeebhedi zokuthambisa isikhumba
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Iibhedi Ezinoxinzelelo Oluphantsi:Ikhupha imisebe ye-UVA ikakhulu enomlinganiselo omncinci we-UVB; iiseshoni zihlala zithatha imizuzu eli-10–20.
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Iibhedi eziXinzelelo oluPhezulu:Yenza i-UVA enamandla aphezulu kunye ne-UVB ephantsi; iiseshoni zifutshane, zihlala imizuzu emi-5-10.
3. Iingenelo Zokusebenzisa Ibhedi Yokugquma Ulusu
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Indlela elula neyonga ixesha yokwenza i-tan ibe mnyama.
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Inokunceda ukulingana kombala wolusu.
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Ingaphucula indlela abantu abavakalelwa ngayo ngokunyusa amanqanaba e-serotonin kwabanye abantu.
4. Izinto ekufuneka ziqwalaselwe kukhuseleko
Nangona zilula, iibhedi zokuthambisa isikhumba zinemingcipheko:
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Ukonakala Kolusu:Ukuchama kakhulu kunokubangela ukwaluphala kwangethuba kunye nemibimbi.
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Umngcipheko Okhulayo Womhlaza:Zombini i-UVA kunye ne-UVB zingonakalisa i-DNA kwiiseli zesikhumba.
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Ukhuseleko Lwamehlo:Soloko unxiba izibuko zokujonga ilanga ukuze uthintele ukwenzakala kwamehlo okubangelwa yi-UV.
Isiphelo
Iibhedi zokufunxa umbala zibonelela ngendlela ekhawulezayo nelawulwayo yokufumana inkangeleko entsundu, kodwa zikwabeka ulusu lwakho kwimitha ye-UV efana nelanga - kwaye ngamanye amaxesha inamandla kunelanga. Zisebenzise ngokulinganisela, landela izikhokelo zokhuseleko, kwaye soloko ukhusela amehlo nolusu lwakho.