Kurapa nechiedza kwagara kuripo kubvira zvirimwa nemhuka pazvaiva panyika, sezvo tese tichibatsirwa nechiedza chezuva kusvika pamwero wakati.
Chiedza cheUVB chinobva kuzuva hachingosangani necholesterol muganda chete kuti chibatsire kuumba vhitamini D3 (zvichibatsira muviri wese), asi chikamu chitsvuku chechiedza chinoonekwa (600 - 1000nm) chinosanganawo neenzyme inokosha yemetabolism iri mumitochondria yemasero edu, zvichisimudzira kugona kwedu kugadzira simba.
Kurapa nechiedza kwemazuva ano kwave kuripo kubvira kuma1800 ekupedzisira, nguva pfupi mushure mekunge magetsi nemwenje wepamba zvatanga kushandiswa, apo Niels Ryberg Finsen, akaberekwa kuFaroe Islands, akaedza kushandisa chiedza semushonga wezvirwere.
Finsen akazohwina mubairo weNobel wekurapa muna 1903, gore rimwe chete asati afa, achibudirira zvikuru mukurapa smallpox, lupus nedzimwe zvirwere zveganda nechiedza chakasimba.
Kurapa kwekutanga kwechiedza kwaisanganisira kushandiswa kwemagirobhu echinyakare eincandescent, uye zvidzidzo zvinosvika zviuru gumi zvakaitwa pachiedza muzana remakore rechi20. Zvidzidzo zvakasiyana-siyana zvinobva pamigumisiro pahonye, kana shiri, vakadzi vane pamuviri, mabhiza nezvipembenene, mabhakitiriya, zvirimwa nezvimwe zvakawanda. Kuvandudzwa kwazvino kwaive kuunzwa kwezvishandiso zve LED nemalaser.
Sezvo mavara akawanda akawanikwa sema LED, uye kushanda zvakanaka kwetekinoroji kwakatanga kuvandudzika, ma LED akava sarudzo ine musoro uye inoshanda zvikuru yekurapa nechiedza, uye ndiyo nzira inoshandiswa neindasitiri nhasi, kushanda zvakanaka kuchiri kuwedzera.