Vim li cas cov tshuaj pleev thaiv hnub yog qhov txaus ntshai

2024 Tus sau: Seth Attwood | [email protected]. Kawg hloov kho: 2023-12-16 16:06

Kev tshawb fawb tau ua pov thawj pom tseeb tias ntau dhau ultraviolet hluav taws xob (UV) ua rau kev laus ntxov ntxov thiab mob qog noj ntshav ntawm daim tawv nqaij (xws li nws daim ntawv txaus ntshai tshaj plaws, melanoma). Yog li ntawd, nyob rau hauv cov teb chaws Europe thiab nyob rau hauv lub tebchaws United States, cov neeg tam sim no tsis tshua muaj peev xwm mus rau lub puam yam tsis tau smearing tshuaj pleev thaiv hnub los ntawm lub taub hau mus rau ntiv taw. Maj mam, qhov kev cai no yog instilled nyob rau hauv Russia, uas tsis ntev los no tau txaus siab khaws Western tiam sis nyob rau hauv lub teb ntawm ib tug noj qab nyob zoo txoj kev ua neej.

Lub caij no, tam sim no muaj ntau thiab ntau qhov laj thawj los lees paub tias kev hnav khaub ncaws hnub ci nrog cov tshuaj pleev thaiv hnub yog qee zaum tsis muaj tsawg, thiab qee zaum muaj kev phom sij ntau dua li kib hauv lub hnub yam tsis muaj kev tiv thaiv. Tseeb tiag, nws yog nyob rau hauv Tebchaws Meskas thiab Tebchaws Europe, qhov chaw tshuaj pleev thaiv hnub tau siv sijhawm ntev, tias qhov kev nce ntxiv ntawm txhua hom mob qog noj ntshav tau pom nyob rau peb lub xyoo dhau los. Yog tias thaum xyoo 1970s qhov tshwm sim ntawm melanoma ntawm cov neeg dawb hauv Tebchaws Meskas yog rau tus neeg mob rau txhua 10 txhiab tus neeg, ces thaum pib ntawm xyoo 2000 nws tau nce peb npaug. Hauv Tebchaws Europe, qhov tshwm sim ntawm melanoma tau nce yuav luag tsib npaug ntawm tib lub sijhawm. Peb qhov kev xav tau raug npaj los piav qhia qhov tseeb tu siab no. Raws li thawj zaug, tam sim no pom qhov nce ntawm qhov tshwm sim ntawm cov qog nqaij hlav ntawm daim tawv nqaij yog kev them nyiaj rov qab rau kev mob siab rau lub hnub nyob rau xyoo 1960 thiab 1970s, txij li ntau tshaj ib xyoo caum tuaj yeem dhau los ntawm qhov pib DNA puas thiab kev loj hlob ntawm cov qog. Cov neeg txhawb nqa ntawm qhov kev xav thib ob thuam cov tshuaj pleev thaiv hnub thiab cov tshuaj uas lawv muaj. Thaum kawg, qhov kev xav thib peb yog tias nws tsis yog tshuaj pleev thaiv hnub los ntawm lawv tus kheej, tab sis txoj kev peb siv lawv, uas hloov lawv los ntawm cov tawv nqaij tiv thaiv mus rau qhov muaj kev pheej hmoo.

Tanning thiab Vanity

Txhua yam pib thaum xyoo 1960, thaum cov neeg tawv dawb-dawb Caucasians dheev pib ua lawv qhov zoo tshaj plaws los hloov cov xim ntawm lawv cov tawv nqaij, uas kom txog rau thaum tsis ntev los no lawv zoo siab heev. Lub zog tsav tom qab lub siab xav no yog tib neeg tsis pom kev. Ua ntej kev lag luam kiv puag ncig, feem pua ntawm cov pej xeem tseem ceeb tau ua haujlwm hauv kev ua liaj ua teb, yog li kev ua haujlwm thiab kev txom nyem tau cuam tshuam nrog cov tawv nqaij sunburned, uas hais txog cov sij hawm ntev siv nyob rau hauv cov teb hauv qab ntuj qhib. Txawm li cas los xij, nyob rau lub sijhawm tom qab tsov rog (1950s), ntau thiab ntau tus neeg pib ua haujlwm hauv cov chaw tsim khoom thiab cov chaw tsim khoom uas lub hnub ci tsis nkag mus. Tam sim no, daj ntseg, tsis muaj xim ntawm daim tawv nqaij yog ib qho pov thawj rau qhov xav tau kom khwv tau nyiaj los ntawm kev ua haujlwm hnyav, thaum tanning tau cuam tshuam nrog kev ua siab dawb, tshav ntuj-drenched tennis lub tsev hais plaub thiab cov ntug hiav txwv dej hiav txwv.

Txawm li cas los xij, nws tau pom tias kev hloov xim ntawm daim tawv nqaij, txawm tias ib ntus, tsis yooj yim li. Ib tug neeg ua nws zoo nkauj sai sai, tab sis ib tug neeg yuav tsum raug lawv cov tawv nqaij mus kuaj mob - nws yog tsim nyog siv sij hawm me ntsis ntxiv nyob rau hauv lub hnub, thiab koj muaj peev xwm tau txais ib tug sunburn, uas negated tag nrho cov dag zog kom tau lub siab xav tan, txij li thaum daim tawv nqaij tom qab. kub hnyiab tawm.

Nws yog rau cov neeg txom nyem uas kev lag luam tshuaj pleev ib ce muaj ib qho tshiab - tshuaj pleev ib ce uas tiv thaiv kev kub nyhiab, tab sis tsis tiv thaiv tshav ntuj. Ua tsaug rau cov cuab yeej tshiab, txawm tias cov tib neeg uas ntuj tsim muaj xim daj ntseg, cov tawv nqaij tsis zoo tuaj yeem siv sijhawm ntev ntawm lub puam, thaum kawg ua tiav qhov xav tau tan. Raws li nws tau muab tawm, qhov no yog qhov tseeb uas ua tsis tau.

LUB ABC ntawm ULTRAVIOLET

Cov hluav taws xob ultraviolet ncav cuag lub ntiaj teb nrog lub hnub ci tuaj yeem muab faib ua ob hom - UV-A thiab UV-B. Qhov tseem ceeb sib txawv ntawm lawv yog nyob rau hauv lub zog hluav taws xob thiab qhov tob ntawm kev nkag mus rau hauv lub dermis. UV-B nqa ntau lub zog, yog li nws sai sai ua rau hlawv. Nws yog hom hluav taws xob no uas tau thaiv los ntawm thawj cov tshuaj pleev thaiv hnub, thiab nws yog hom hluav taws xob uas tau suav tias yog qhov txaus ntshai tshaj plaws rau lub sijhawm ntev. Txawm li cas los xij, tam sim no paub tias UV-B tsis nkag mus tob thiab txhua qhov kev puas tsuaj nws ua rau daim tawv nqaij feem ntau tsis muaj qhov tshwm sim deb. Cov tawv nqaij kub hnyiab yog thawj zaug nrog cov hlwv, tom qab ntawd nws tawm nrog cov flaps, thiab nrog nws cov hlwb uas muaj DNA txaus ntshai raug tshem tawm.

Qhov xwm txheej no txawv kiag li nrog ultraviolet A, uas tau xub pom tias muaj txiaj ntsig zoo vim nws ua rau tshav ntuj tab sis tsis muaj zog txaus los hlawv daim tawv nqaij. Tab sis nws tau muab tawm tias nws yog UV-A uas tuaj yeem nkag mus rau hauv cov txheej txheem sib sib zog nqus ntawm cov epidermis thiab dermis thiab ua rau cov roj ntsha molecules puas tsuaj. Yog tias yav dhau los cov neeg tuaj yeem tsis tuaj yeem tshav ntuj ntev ntev, txij li lawv cov tawv nqaij raug hlawv, thiab feem ntau tsuas yog tau txais kev puas tsuaj ib ntus xwb, tom qab ntawd nrog kev tshwm sim ntawm cov tshuaj pleev thaiv hnub uas tiv thaiv daim tawv nqaij los ntawm UV-B hluav taws xob, ntau tus pib pw ntawm lub puam rau ntau teev., raug rau lub sij hawm raug UV-A.

YUAV UA LI CAS YUAV TAU TXAIS ULTRAVIOLET

Ob leeg UV-B thiab UV-A rays tuaj yeem nqus tau los ntawm cov roj ntsha molecules thiab ua rau cov tshuaj tiv thaiv photochemical ua rau cov dawb radicals - tsis ruaj khov, cov khoom siv hluav taws xob zoo heev uas tsis muaj ib qho hluav taws xob thiab txaus siab nkag mus rau hauv tshuaj lom neeg.

Koj tuaj yeem hais tias tus dawb radical zoo li ib tug hluas reveler uas tsis muaj lub luag haujlwm coj ncaj ncees thiab yeej tsis plam lub sijhawm los tawm tsam kev sib raug zoo. Thiab yog hais tias xws li "kev tsis ncaj ncees" radical nkag mus rau hauv ib daim ntawv cog lus nrog "kev hwm" molecule, tom qab ntawd lub tom kawg yuav tig mus rau hauv cov dawb radical thiab pib tsis meej pem qhov kev sib haum xeeb ntawm cov tshuaj tiv thaiv. Tshwj xeeb, UV-A hluav taws xob nkag mus tob rau hauv daim tawv nqaij tuaj yeem tig collagen molecules, cov protein ua rau cov tawv nqaij du thiab ruaj khov, ua dawb radicals. Yog li ntawd, collagen fibers khi rau ib leeg, tsim tsub zuj zuj ntawm cov tsis xws luag inelastic collagen, uas maj mam ua rau cov tsos ntawm cov yam ntxwv ntawm daim tawv nqaij irregularities thiab wrinkles. Lawv, tsim nyob rau hauv kev cuam tshuam ntawm UV hluav taws xob, tshwm sim ua ntej ntawm "teev", ntev ua ntej daim tawv nqaij pib muaj hnub nyoog rau ntuj tsim. Qhov tshwm sim ntawm kev hloov pauv dawb radical ntawm DNA yog qhov hnyav dua: ob feem ntawm DNA molecule, uas tau dhau los ua radicals, tuaj yeem khi rau ib leeg, yog li qhia tsis meej pem rau hauv cov caj ces ntawm lub xov tooj ntawm tes. Cells uas tau txais kev puas tsuaj DNA tuaj yeem tsim cov qog nqaij hlav hauv lub sijhawm.

SPF - Qhov taw qhia tsis tsim nyog

Hauv xyoo 1990, cov tshuaj pleev thaiv hnub dav dav tau tshwm sim thaum kawg, uas yog, cov uas tiv thaiv tsis yog los ntawm UV-B - tab sis kuj los ntawm UV-A hluav taws xob. Qhov no yog qhov teeb meem tshwm sim. Cov neeg xav tanned vim cov tawv nqaij tanned tseem suav hais tias zoo nkauj. Tab sis yog tias koj siv tshuaj pleev thaiv hnub uas tsis yog UV-A lossis UV-B permeable rau koj cov tawv nqaij, koj yuav tsis tau tanning. Puam neeg mus ncig ua si uas npau suav txog "kev nyab xeeb" tan pib tshwj xeeb rau cov tshuaj pleev thaiv hnub uas muaj kev tiv thaiv siab tiv thaiv tshav ntuj (SPF) qhov tseem ceeb. Qhov tseeb tias txawm tias cov tshuaj pleev thaiv hnub nrog cov txiaj ntsig SPF siab, tanning tshwm sim (txawm tias qeeb dua yam tsis muaj kev tiv thaiv), rau qee yam, tsis tau ceeb toom rau leej twg. Thiab nyob rau hauv vain, vim hais tias nyob rau hauv qhov tseeb tus nqi SPF yog ib tug heev unreliable qhia ntawm kev tiv thaiv efficiency.

SPF tso cai rau koj los soj ntsuam ntau npaum li cas ib qho khoom lag luam ua rau cov tsos ntawm thawj qhov liab ntawm daim tawv nqaij nyob rau hauv kev cuam tshuam ntawm UV hluav taws xob. Piv txwv li, yog tias liab tshwm tom qab 20 feeb yam tsis muaj tshuaj pleev thaiv hnub, qhov liab liab tshwm tom qab 200 feeb nrog tshuaj pleev thaiv hnub uas muaj kev tiv thaiv ntawm 10. Txij li thaum liab ntawm daim tawv nqaij tshwm sim tsuas yog nyob rau hauv lub cuam tshuam ntawm UV-B hluav taws xob, lub hnub tiv thaiv qhov tseem ceeb qhia tau hais tias tsuas yog cov kev ua tau zoo ntawm UV-B tiv thaiv.

Niaj hnub no, ntau lub tuam txhab tshuaj pleev thaiv hnub qhia rau ntawm lawv cov pob ntawv qib ntawm kev tiv thaiv UV-A hluav taws xob raws li tsib lub hnub qub: lub hnub qub ntau dua, kev tiv thaiv zoo dua. Tab sis txog tam sim no SPF tseem yog qhov paub zoo tshaj plaws thiab nrov qhia txog kev ua tau zoo, uas yog vim li cas cov neeg siv khoom tau saib xyuas nws. Nyob rau tib lub sijhawm, ob peb tus neeg paub tias cov tshuaj pleev thaiv hnub uas muaj SPF siab, thiab yog li tiv thaiv cov tawv nqaij los ntawm tshav ntuj, tsis tas yuav thaiv txoj hauv kev ntawm UV-A hluav taws xob. Raws li qhov tshwm sim, tib neeg tuaj yeem rub lawv tus kheej nrog kev nkag siab ntawm kev ruaj ntseg thiab tau txais qhov ntev-awaited tan … nrog rau tag nrho cov kev tshwm sim.

TSIS TXAUS SIAB COCKTAIL

Ntau xyoo dhau los ntawm obsessive tshaj tawm rau cov tshuaj pleev thaiv hnub tau coj tib neeg, tshwj xeeb tshaj yog nyob rau sab hnub poob, saib lawv yog qhov yuav tsum muaj rau lawv lub puam ua si. Txawm li cas los xij, cia peb xav txog dab tsi, qhov tseeb, peb tau muab? Thiab lawv hais tias peb smear peb tus kheej nrog kev npaj muaj ntau yam tshuaj, thiab hloov cov cocktail no rau ntawm peb cov tawv nqaij nyob rau hauv lub hnub lub rays. Nyob rau tib lub sijhawm, nws ua li cas los ntawm nws tus kheej txhais tau tias cov tshuaj no tsis hnov mob ntawm daim tawv nqaij lossis nrog lub hnub ci hluav taws xob, tsis txhob nkag mus rau hauv cov ntshav nyob rau hauv ib qho xwm txheej thiab, feem ntau, ua kom tiav inertia thiab kev ntseeg tau. Tab sis qhov no tsis yog li ntawd.

Cov tshuaj pleev thaiv hnub muaj UV lim (tseem hu ua UV absorbers) - cov tshuaj uas txo qis UV hluav taws xob uas nkag mus rau ntawm daim tawv nqaij. Cov ntxaij lim dej UV uas muaj cov ntsiab lus uas cuam tshuam thiab cuam tshuam UV hluav taws xob hu ua lub cev lossis cov lim dej tsis muaj zog UV. Cov no suav nrog zinc oxide thiab titanium dioxide. Lub cev UV cov ntxaij lim dej tsis yog-allergenic lossis tsis ua rau tawv nqaij thiab muaj dav dav - lawv thaiv ob qho tib si UV-A thiab UV-B hluav taws xob. Yav dhau los, lub cev UV cov ntxaij lim dej muaj cov khoom loj, tsis muaj kuab lom, yog li lawv ua rau tawv nqaij dawb. Tam sim no cov khoom ntawm lub cev UV lim tau pib ua me me - nyob rau hauv micro- thiab txawm nano-ntau yam, kom lawv tsis stains ntawm daim tawv nqaij.

Lwm pab pawg ntawm UV cov ntxaij lim dej sib xyaw ua ke cov khoom uas tuaj yeem nqus tau UV hluav taws xob vim qhov peculiarities ntawm lawv cov qauv tshuaj. Lawv hu ua organic lossis tshuaj UV lim. Organic UV lim tso cai rau koj los tsim cov khoom uas muaj kev tiv thaiv txog li 100 thiab ntau dua, nws yog qhov yooj yim kom suav nrog ntau hom tshuaj pleev ib ce - cream, gels, tshuaj tsuag, tshuaj pleev ib ce, thiab lwm yam. kuj ntxiv rau cov tshuaj pleev ib ce, tshuaj zawv plaub hau, thiab lwm yam tshuaj pleev plaub hau. Tab sis tsis yog tag nrho cov tshuaj no muaj kev nyab xeeb rau daim tawv nqaij.

Ua ntej ntawm tag nrho cov, organic UV cov ntxaij lim dej muaj ntau heev ua rau tawv nqaij ua xua thiab khaus khaus. Tsis tas li ntawd, qee cov organic UV lim tuaj yeem ua photoreactive. Qhov no txhais tau hais tias yog tias lub teeb ultraviolet ci rau ntawm cov ntxaij lim dej UV no tau ntev, lawv pib deterioration, qee zaum tso tawm dawb radicals. Qhov no txhais tau hais tias tom qab ib lub sij hawm ntawm irradiation nyob rau hauv daim tawv nqaij "tiv thaiv" los ntawm xws li UV lim, ntau dawb radicals yuav tsim dua nyob rau hauv daim tawv nqaij tsis muaj kev tiv thaiv.

Tam sim no nws tau paub tias ntau cov organic UV lim kuj muaj cov tshuaj hormonal. Nws tau pom tias lawv tuaj yeem ua rau muaj kev sib daj sib deev thiab kev tsis sib haum xeeb hauv kev loj hlob ntawm qhov chaw mos hauv cov ntses, molluscs thiab lwm yam dej hauv dej. Nws tseem tsis tau paub meej txog qhov twg cov tshuaj hormonal ntawm UV lim tau tshwm sim hauv tib neeg lub cev, tab sis nws twb pom tseeb tias cov tshuaj no tsis tuaj yeem hu ua kev nyab xeeb thiab tsis muaj zog.

Tej zaum qhov tseeb qhov txaus ntshai tshaj plaws yog tias UV lim tuaj yeem nkag mus rau hauv cov hlab ntsha thiab tsim hauv lub cev. Piv txwv li, raws li kev tshawb fawb hauv Teb Chaws Asmeskas tsis ntev los no, feem ntau UV lim benzophenone-3 (oxybenzone), uas muaj nyob rau hauv ntau cov tshuaj pleev thaiv hnub, tau pom nyob rau hauv 96% ntawm ntau tshaj 2,000 cov zis kuaj los ntawm cov neeg Asmeskas ntawm ntau haiv neeg keeb kwm, hnub nyoog thiab. poj niam txiv neej. Nyob rau tib lub sijhawm, nyob rau hauv lub cev ntawm cov poj niam, tshwj xeeb tshaj yog cov hluas, cov ntsiab lus ntawm oxybenzone yog, nyob rau hauv nruab nrab, peb zaug siab tshaj nyob rau hauv lub cev ntawm cov txiv neej, thiab nyob rau hauv cov ntshav ntawm cov neeg Amelikas dawb nws yog xya lub sij hawm ntau dua li ntawm. African Asmeskas.

NATURAL PROTECTION

Yog tsis tshuaj pleev thaiv hnub, ces ua li cas? Yuav pib nrog, tib neeg daim tawv nqaij tsis yog ze li ntawm qhov tsis zoo rau UV hluav taws xob li cov tuam txhab tshuaj pleev thaiv hnub tab tom sim xav txog. Koj tsuas yog yuav tsum tau kho qhov kev tiv thaiv no kom tsim nyog thiab tsis ua rau qhov xav tau ntau dhau ntawm nws. Piv txwv li, yog tias lub kaus mom hlau siv tau tiv thaiv qhov cuam tshuam ntawm lub cib poob, qhov no tsis txhais hais tias nws yog impenetrable. Yog li ntawd, yog tias koj muaj lub siab xav muab lub kaus mom hlau thiab pounding koj tus kheej ntawm lub taub hau nrog lub crowbar, koj tsuas muaj koj tus kheej los liam rau qhov tshwm sim. Nws yog ib yam nrog cov txheej txheem tiv thaiv ntawm daim tawv nqaij. Tsis txhob overextend lawv.

Lub ntsiab tiv thaiv ntawm daim tawv nqaij yog cov xim tsaus melanin. Tsis tas li ntawd, qhov tsaus dua qhov qub (kev txiav txim siab caj ces) ntawm daim tawv nqaij pigmentation, qhov kev tiv thaiv zoo dua. Cov neeg uas muaj daim tawv nqaij tsaus yuav tan zoo thiab tsis tshua muaj tshav kub. Nrog kev tsim tawm ntawm melanin tsis txaus, ib tus neeg tuaj yeem hlawv tau yooj yim thiab tsis ua tiav yam tsawg kawg ntawm cov tawv nqaij. Yog li ntawd, yog hais tias koj muaj lub teeb, yooj yim hlawv ntawm daim tawv nqaij, ces koj yuav tsum tau ceev faj nrog lub hnub rays, tsis hais seb koj puas tau smeared nrog tshuaj pleev thaiv hnub los yog tsis. Yog tias koj muaj cov tawv nqaij tsaus, koj tuaj yeem tso siab rau kev tiv thaiv ntawm koj tus kheej cov tawv nqaij pigment. Txawm li cas los xij, ntev heev thiab khaus UV hluav taws xob tuaj yeem ua rau puas tsuaj thiab npog txawm tias daim tawv nqaij ntawm Negroids nrog wrinkles thiab hnub nyoog me ntsis. Thiab txawm tias dub tau txais melanoma. Muaj tseeb tiag, ntau tsawg dua ntawm cov neeg dawb.

Lub thinner ntawm daim tawv nqaij yog, qhov ntau puas. Yog li ntawd, raws li txoj cai, cov poj niam thiab cov me nyuam ntawm daim tawv nqaij yog cuam tshuam los ntawm UV hluav taws xob ntau. Nws yog qhov txaus ntshai tshwj xeeb tshaj tawm cov tawv nqaij ntawm cov menyuam yaus hnub nyoog qis dua ib xyoos mus rau ntau dhau UV hluav taws xob. Txawm li cas los xij, luv luv sunbathing thaum sawv ntxov yuav tsis ua mob thiab, ntawm qhov tsis sib xws, yuav pab tsim cov vitamin D tsim nyog.

Lwm kab ntawm kev tiv thaiv yog antioxidants - tshuaj uas neutralize dawb radicals. Lawv muaj nyob rau hauv lub stratum corneum ntawm daim tawv nqaij, thiab kuj yog excreted rau nws nto nrog sebum. Nws yuav tsum nco ntsoov tias ntau cov tshuaj antioxidants yog cov vitamins uas tsis tsim nyob rau hauv lub cev thiab yuav tsum tau noj nrog zaub mov. Ib qho zoo heev ntawm antioxidants - zaub, txiv hmab txiv ntoo thiab berries, ntsuab tshuaj yej.

Yog tias kev tiv thaiv tsis ua haujlwm thiab cov hlwb ntawm daim tawv nqaij raug puas tsuaj los ntawm lub hnub, tsis yog txhua yam ploj, vim tias daim tawv nqaij tuaj yeem kho qhov tseem ceeb ntawm kev puas tsuaj. Ib qho ntawm cov tshuaj tiv thaiv salutary yog qhov paub zoo "peeling" ntawm daim tawv nqaij tom qab tshav kub. Qhov "kev hloov ntawm daim tawv nqaij" no pab lub cev tshem tawm cov hlwb nrog DNA puas uas tuaj yeem ua rau cov qog nqaij hlav malignant.

YUAV UA LI CAS THIAB YUAV UA LI CAS?

Raws li koj tuaj yeem pom, muaj ntau yam laj thawj yog vim li cas lub sijhawm ntawm cov tshuaj pleev thaiv hnub tau ib txhij dhau los ua ib lub sijhawm ntawm qhov tsis tau muaj dua qhov tshwm sim ntawm daim tawv nqaij. Lub luag haujlwm tau ua los ntawm qhov tseeb tias nyob rau lub sijhawm xyoo 1970 txog rau xyoo 1990, feem ntau cov neeg nyiam hnub ci tsis tau siv tshuaj pleev thaiv hnub, lossis siv UV-B tiv thaiv, uas tsuas yog pab txhawb kom nyob ntev ntawm lub puam, tsis muaj ib qho twg. txoj kev uas yuav txo tau ntawm daim tawv nqaij puas…. Tsis tas li ntawd, muaj cov tshuaj nyob rau hauv cov tshuaj pleev thaiv hnub uas muaj peev xwm ua kom cov tawv nqaij puas tsuaj kuj ua lub luag haujlwm. Tab sis qhov tseem ceeb tshaj plaws, qhov no tseem yog tus cwj pwm tsis zoo ntawm cov neeg uas txuas ntxiv mus rau qhov xav tau tan, txawm tias tag nrho cov lus ceeb toom ntawm cov kws tshawb fawb thiab kws kho mob.

Tau kawg, ib tug neeg xav tau lub hnub ci. Ultraviolet lub teeb muab cov synthesis ntawm vitamin D, uas tsis yog tsuas yog ib qho tseem ceeb rau kev tsim kom zoo ntawm cov pob txha thiab cov leeg, tab sis kuj plays lub luag hauj lwm tseem ceeb nyob rau hauv kev tiv thaiv ntawm malignant qog, tswj kev noj qab haus huv ntawm lub plawv, daim siab thiab ob lub raum, thiab. endocrine tshuav nyiaj li cas. Hnub ci tawm tsam retina ntawm qhov muag ua rau tsim cov tshuaj tiv thaiv kev nyuaj siab melatonin. Nruab nrab UV hluav taws xob txhawb kev tiv thaiv ntawm daim tawv nqaij (ntau dhau UV ua rau nws), ua kom yooj yim ntawm ntau yam kab mob ntawm daim tawv nqaij.

Tab sis kev raug tshav ntuj ntau dhau tuaj yeem ua rau cov tawv nqaij ntxov ntxov thiab ua rau lwm yam kev hloov pauv tsis zoo. Peb cov pog yawg paub txog qhov no tsis muaj kev tshawb fawb, lawv tsuas yog pom lub ntsej muag tsaus nti ntawm cov poj niam ua liaj ua teb ua haujlwm hauv huab cua qhib. Ntxoov ntoo, cov kaus mom nrog dav brims thiab hnab looj tes uas npog caj npab mus rau lub luj tshib tau txais kev tiv thaiv los ntawm lub hnub. Niaj hnub no, cov tshuaj pleev thaiv hnub nrog cov nqi qis SPF tuaj yeem siv rau tib lub hom phiaj. Txawm li cas los xij, yog tias koj xav tau me ntsis tan, siv kev ceeb toom tsim nyog - zam lub hnub thaum tav su, nce koj lub sijhawm ntawm lub puam maj mam, pib ntawm 5-10 feeb ib hnub, thiab tsis txhob nthuav tawm koj cov tawv nqaij ib yam nkaus. ntev nrog los yog tsis muaj tshuaj pleev thaiv hnub.