Intangiriro
Igitanda cyo gusiga ibara ry'uruhu ni igikoresho gikunzwe cyane gikoreshwa mu kugira isura ishaje utiriwe umara amasaha menshi uri ku zuba. Gikoresha amatara yihariye atanga urumuri rwa ultraviolet (UV) kugira ngo gitere ibara rya melanin mu ruhu, bigatuma uruhu rusa n'urushaje.
1. Uko uburiri bwo gushushanya bikora
Ibitanda byo gutwikira uruhu bifite amatara ya fluorescent cyangwa amatara afite umuvuduko mwinshi atanga ingano igenzurwa yaUVAnaUVBimirasire.
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Imirasire ya UVA (315–400 nm)kwinjira cyane mu ruhu, bigatera ingaruka z'umwijima ako kanya.
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Imirasire ya UVB (280–315 nm)bikora ku gice cyo hanze cy'uruhu, bigatera imbaraga ikorwa rya melanin nshya kugira ngo irangire igihe kirekire.
Iyo uruhu rwawe rwinjije iyi mirasire, melanocytes (uturemangingo dukora ibara ry'uruhu) dutera imbaraga nyinshi, bigatuma ibara ry'uruhu ryijimye.
2. Ubwoko bw'ibitanda byo gusiga ibara ry'uruhu
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Ibitanda bifite umuvuduko muke:Itanga imirasire ya UVA cyane cyane hamwe n'ingano nto ya UVB; amasomo akenshi amara iminota 10-20.
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Ibitanda bifite umuvuduko mwinshi:Gukora UVA ifite imbaraga nyinshi n'UVB nkeya; amasomo aba magufi, akenshi iminota 5-10.
3. Ibyiza byo gukoresha uburiri bwo gukaraba
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Uburyo bworoshye kandi buhendutse bwo kwisiga ibara ry'uruhu.
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Bishobora gufasha koroshya uruhu.
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Bishobora kongera ibyiyumvo binyuze mu kongera urugero rwa serotonin kuri bamwe.
4. Ibigomba kwitabwaho mu mutekano
Nubwo byoroshye, uburiri bwo gusiga ibara ry'uruhu bufite ibyago:
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Kwangirika k'uruhu:Kugaragara cyane bishobora gutera gusaza imburagihe no kubabara iminkanyari.
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Ingaruka zo Kurwara Kanseri Ziriyongereye:UVA na UVB byombi bishobora kwangiza ADN mu turemangingo tw'uruhu.
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Uburinzi bw'amaso:Buri gihe wambare indorerwamo zikoresha uruhu kugira ngo wirinde kwangirika kw'amaso bitewe n'imirasire y'izuba.
Umwanzuro
Uburiri bwo gusiga ibara ry'uruhu butanga uburyo bwihuse kandi bugenzurwa bwo kugera ku isura y'uruhu, ariko kandi bushyira uruhu rwawe ku mirasire ya UV isa n'izuba - rimwe na rimwe ikomeye kurusha - kandi rimwe na rimwe ikaba ikomeye kurusha izuba. Bukoreshe mu rugero, kurikiza amabwiriza y'umutekano, kandi buri gihe wirinde amaso yawe n'uruhu rwawe.