Sunscreen uye kuchengeteka kwezuva
Vabereki vakawanda vanofunga nezveSSPF, kana Sun Protection Factor, senzira yekuudza kuti yakasimba yezuva rakadini. Uye apo izvo zvakati zvimwe, seSSPF 30 zuva rekona rinopa huni kudzivirirwa kwezuva kupfuura SPF 15 yezuva, kune zvakawanda kune izvozvo kupfuura izvozvo.
Nechimwe chinhu, SPF inongova chiyero chekushanda kwezuva kwemazuva ekurwisana nemirasi yeVB. Saka mwana wako angave asina kuchengetedzwa kwezuva , kunyange iwe uri kushandisa SPF 100+ yakachena yezuva kunze kwekuti inoratidzirawo mavara ezuva anovhara UV rays.
Izvi zvinonzi sunscreens zvinodzivirira pakusvibira kweUVA uye UVB zvinowanzozonyoreswa semasikati machena.
Chii chinonzi SPF?
Imwe nzira isina kururama pamusoro peSSPF ndeyekuti inongokuudza iwe nguva yakareba sei iwe unogona kugara muzuva usingatori zuva.
Kunyange zvazvo ichokwadi, inguva yakadini yezuva rinochengetedza iwe - pasinei nokuti SPF - inofanirwa nekukanda kwezuva panguva iyoyo. Semuenzaniso, zvinogona kutora maminitsi makumi matatu emwana asina shisheni yezuva kuti awane kupisa kwezuva mangwanani, asi nemaminitsi gumi nemasere masikati masikati, apo simba remazuva ezuva rakakwirira. Uye kunyange panguva imwechete yezuva, zvinotora nguva shomanana yekuwana kupisa kwezuva mumazuva apo rondedzero yeVV iri pamwero wepamusoro kusvika kumusoro, zvichienderana nemazuva apo yakaderera.
Saka nepo SPF 15 yezuva inofanirwa kubvumira mwana wako kuti arambe ari muzuva ka15 nguva refu asingatyi kupisa kwezuva kupfuura zvaaigona nekunze kwezuva kudzivirira, zvichienderana nenguva yezuva uye UV Index, izvo zvinogona kureva maawa 4 kana maawa masere yezuva kudzivirirwa.
Dai SPF 50 yezuva yakachena inobvumira mwana wako kuti arambe ari muzuva kwenguva yakareba makumi mashanu, achipa zuva rose kudzivirirwa?
Zvinosuruvarisa, kwete. Mazuva ano sunscreens haisi kupa zuva-zuva kudzivirirwa kwezuva kana kudzivirirwa kunogona kupedza nguva inopfuura maawa mashoma. Zvimwe zvinhu zvakawanda zvinogona kukanganisa kuti zuva rakadini zvakanaka, kusanganisira iyo:
- Kunyangwe mvura isingadziviriri, mvura isina mvura, uye mazhenjeti ezuva rinozotanga kushambidza mushure memaminitsi anenge 80 kana nokukurumidza kana mwana wako ari kushambira kana kutuka zvikuru
- Zvimwe zvisikwa zvezuva rezuva zvinotanga kumira kuputsika pazvinoratidzwa zuva
- Chikoro chesvini chinogona kunyanya kubviswa apo mwana wako ari kutamba
Uye vabereki vazhinji vanongoshandisa imwechete-yechina kusvika hafu yehuwandu hwekurudzirwa kwezuva uye haubatsiri zvakare kakawanda.
Zvimwe Nezve SPF
Muzhinji, sunscreen ne:
- SPF 2 inovhara 50% yemirasi yeVB
- SPF 4 inovhara 75% yeVV rays
- SPF 8 inodzivirira 87% yemirairo yeVB
- SPF 15 inovhara 93% yemirairo yeVB
- SPF 30 inovhara 97% yeVV rays
- SPF 50 matanho 98% emusika weVB
- SPF 100 inodzivirira 99% yeVV rays
Nyanzvi dzakawanda dzinobvunza kana kushandisa sunscreen pamusoro pe SPF 30 inonyanya kukosha, zvakadaro, sezvo iwe watovhara 97% emavira eVB. Kushandisa shandi yakakwirira yeSSPF inogona kunge iri pfungwa yakanaka uye inogona kupa hudziviriro kune vabereki ivavo vasingashandisi zvakakwana zvechena chezuva uye havazviiti zvakare.
Semuenzaniso, SPF 30 yezuva yakachena ichave inova SPF 5 yezuva kana kuti iwe unoshandisa hafu yekurudziro yemari, sezvinoita vabereki vakawanda. Kana yakakwirira SPF 100 yeganda rezuva yakaderera nechiyero chimwe chete, saka unofunga kuti iwe uchiri mu SPF 15 kusvika ku SPF 30 uwandu hweSV kudzivirirwa.
Kuwedzerwa SPF Kuchengetedzwa
Kuti vawane zuva rakachengeteka zuva rekuchengetedza vana vavo, kunze kwekudzikisa kana kupedza zuva ravo rekudzivirirwa kwezuva kana UV iine simba rakasimba (kazhinji kubva munenge muna 10 mangwanani kusvika 4 masikati), vabereki vanofanira kusarudza shisi yezuva yakakura yakawanda neSPF inosvitsa ye15 30 uye inofanira kushanda kuti kuwedzere kuchengetedzwa kweSSPF kwechitsuwa chezuva ichi ne:
- Kushandisa sunscreen kusvika maminitsi gumi nemashanu kusvika makumi matatu vana vasati vazarurirwa zuva, kwete kungomirira kusvikira vatove kunze
- Kushandisa masikati machena, izvo zvinogona kuenzana kusvika pane imwe nguva pane mumwe munhu mukuru
- Kushandisa ganda rezuva risingadziviriri remvura kwemaminitsi gumi nemaminetsi makumi matatu kana makumi matatu mwana asati ashambira kana kuti akazobudiswa mumvura, saka pane zvishoma zvisingatauriki zvichashambidzwa nyore nyore
- Kushandisa sunscreen zvakafanana kune zvikamu zvose zvemuviri zvakaonekwa, kunyanya iyo nzvimbo dzinowanzorambwa, kusanganisira mhino yemwana, kumusoro kwetsoka dzake, uye mushure memutsipa wake
- Kudzokorora bhenekeri zuva rimwe nerimwe maawa maviri, uye kunyanya mushure mekunge mwana achishambira kana kutamba nesimba uye achisvetuka
- Kuita kuti vhudzi rezuva risati rapera, kuchengeta mupfungwa kuti zuva rekunze risina zuva rokupera rinofungidzirwa kurasikirwa nekubudirira kwayo mushure megore kana kuti nguva pfupi kana yakasvikidzwa nekushisa kwakakwirira, kufanana nebhokisi gorofu yemotokari
- Usingaiti zvose zviri zviviri zuva nezuva uye zvipembenene zvinoputika panguva imwe chete, kana chigadzirwa chinosanganisira sunscreen uye insect repellent, sezvo DEET (inowanzoshambadza zvigadzirwa zvinokonzera) inogona kuderedza SPF yeganda rezuva
- Kushandisa chepamusoro-soro cheSSPF kana iwewo uchida kushandisa mushonga unoporesa, asi shandisa cheki yako yezuva kutanga uye iva nechokwadi chekuti unoshandisazve bhuni rezuva nguva dzose maawa mashomanana
Kana mwana wako achiri kutengesa kana kupiswa kwezuva, pasinei nekushandiswa kwezuva, unofanira kuva nechokwadi chokuti unoshandisa nguva pfupi, mwana wako asati abuda panze, anoshandisa zvimwe zvakawanda (funga kushandisa 2 kusvika 4 zvakanyanya shisi yezuva), verengazve kakawanda, uye funga kushandisa shraki yakakwirira ye SPF (SPF 100+) iyo isingadziviriri mvura uye inopa hutachiona hweUVA uye kudzivirira kweVBB.
Sources
Auerbach: Wilderness Mishonga, 5th ed.
CDC. Kurwisa Kanzera Kweganda April 2010.
FDA. Kupisa Kwekudzivirira Kwezuva (SPF). April 2009.
Kim SM. Ukama huri pakati pehuwandu hwezuva hunobatsira uye zuva rinodzivirira mucheka weAsia. J Am Acad Dermatol - 01-FEB-2010; 62 (2): 218-22.