Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Passage: Kutsvakurudza kwokurapa pamusoro pemigumisiro yechiedza chakanyanyisa pamuviri womunhu kunoratidza kuti migumisiro yakasiyana-siyana yakaipa yeutano inogona kukonzerwa nokusvibiswa nechiedza kana kuti kuratidzwa nechiedza kwakanyanyisa, uye mamwe mabhuku anogadzira chiedza anoshandisa utano hwomunhu sechimiro chakananga chechiedza chomukati chakakodzera. Migumisiro yeutano yechiedza chakawandisa kana kuti chimiro chisina kunaka chechiedza chinogona kusanganisira: kuwanda kwemusoro, kuneta kwevashandi, kushushikana kunorondedzerwa navanachiremba, kuderera kwebasa rebonde uye kuwedzera kwekutya. Nenzira yakafanana, mienzaniso yemhuka yakadzidzwa ichiratidza chiedza chisingadzivisiki kuti chibudise muuyo wakashata pamugariro uye funganyo. Kune vaya vanoda kuramba vakamuka usiku, chiedza cheusiku chinokanganisawo chaizvo pfungwa dzavo uye mafungiro avo. Muna 2007, sangano reWorld Health Organization's International Agency for Research on Cancer rakati "basa rinoitwa panguva imwe chete rinoita kuti munhu asagadzikana" rinogona kukonzera kenza. (IARC Press release No. 180). Zvidzidzo zvakawanda zvakanyora kuwirirana kuri pakati pebasa rokushanda usiku nokuwanda kwekenza yemazamu neyeprostate. Chimwe chidzidzo chakaongorora kubatana kuri pakati pokuoneswa chiedza chisiri chomunhu usiku (ALAN) nemwero wekenza yemazamu muSouth Korea chakawana kuti matunhu aiva nemwero yakakwirira yeALAN akazivisa nhamba yakakwirira yematambudziko ekenza yemazamu. Seoul, yaiva nemwero wakakwirira zvikurusa wokusvibiswa nechiedza, yaiva ne34.4% yezviitiko zvakawanda zvegomarara repazamu kupfuura Ganwon-do, yaiva nemwero wakaderera zvikurusa wokusvibiswa nechiedza. Ikoku kwakaratidzira kuwirirana kwakakwirira pakati peALAN nokupararira kwekenza yemazamu. Zvakawanikwawo kuti kwakanga kusina kuwirirana pakati pemamwe marudzi ekenza akadai sekenza yomuromo wechibereko kana yemapapu nemwero yeALAN. Kurukurirano ichangobva kuitika (2009), yakanyorwa naPurofesa Steven Lockley, Harvard Medical School, inogona kuwanikwa mubhuku reCfDS rinonzi "Blinded by the Light?". Chitsauko 4, chinoti "Zvinokonzerwa nokusvibiswa nechiedza pautano hwevanhu" chinotaura kuti "... kupinza chiedza, kunyange chiri chiduku, kungangova nemigumisiro inonzwisisika pakukanganisa kurara uye kudzvinyirira melatonin. Kunyange kana migumisiro iyi iri...  Mubvunzo: Zviratidzo zvipi zvine chokuita nokuvhenekerwa zvakawandisa?
kuwanda kwemusoro, kuneta kwevashandi, kushushikana kunotsanangurwa nechiremba, kuderera kwebasa rebonde uye kuwedzera kwekunetseka