Cov rau tes gel nrov heev niaj hnub no, tshwj xeeb tshaj yog cov ntxhais hluas thiab cov poj niam. Nws yooj yim mus rau lub salon thiab pleev xim rau koj cov rau tes kom zoo nkauj, tom qab ntawd muab tso rau hauv lub tshuab teeb xiav kom qhuav sai, thiab cov xim rau tes yuav zoo nkauj ntev. Tab sis koj puas tau xav tias tom qab lub teeb xiav ntawd, tej zaum yuav muaj qee yam uas peb tsis pom nrog peb lub qhov muag, thiab peb yuav tsum xav txog me ntsis? Qhov ntawd yog qhov peb yuav tham txog hnub no.
Lub teeb UV no yog dab tsi tiag?
Hais yooj yim xwb, lub tshuab ziab rau tes no tso tawm cov teeb ci ultraviolet , lossis qhov peb hu ua (Ultraviolet - UV) . Thaum koj hnov qhov no, tej zaum koj yuav xav txog cov teeb ci UV hauv lub hnub. Yog lawm, qhov no yog tib hom teeb ci. Peb paub tias cov teeb ci UV tuaj yeem ua rau peb daim tawv nqaij kub hnyiab, ntsws ntsws dhau sijhawm, thiab txawm tias ua rau mob qog nqaij hlav .
Cov tshuab ziab UV no siv hauv cov khw txiav plaub hau feem ntau muaj ib hom hluav taws xob hu ua UV-A. Cov no yog cov uas ua rau cov tshuaj lom neeg hauv cov xim pleev rau tes gel thiab ua rau nws tawv sai sai ua tuab thiab ci ntsa iab. Tau ntev los lawm muaj ntau tus neeg tham txog kev pheej hmoo ntawm mob qog noj ntshav ntawm cov hluav taws xob UV los ntawm cov txaj tanning. Yog li, cov kws tshawb fawb tau nug tias, "Yog li lub teeb UV no puas txaus ntshai ib yam nkaus?"
Cov kev tshawb fawb tshiab tshaj plaws qhia tau dab tsi?
Tsis ntev los no, ib pawg kws tshawb fawb los ntawm University of California, Tebchaws Meskas, tau pib tshawb nrhiav qhov no. Cov txiaj ntsig ntawm lawv txoj kev tshawb fawb tau luam tawm hauv phau ntawv xov xwm tshawb fawb nto moo 'Nature Communications'. Nyeem qhov no, nws ua rau koj muaj qee yam los xav txog.
Xav txog nws li no. Cov kws tshawb fawb tau ua yog cog ib hom cell, zoo li peb cov cell tawv nqaij, hauv lub tais petri hauv chav kuaj, thiab tso cov cell ntawd rau lub teeb UV, uas yog qhov ua rau cov rau tes qhuav.
Cov txiaj ntsig yog qhov xav tsis thoob me ntsis.
- Tom qab 20 feeb ntawm kev raug lub teeb UV tas li, kwv yees li 30% ntawm cov hlwb ntawd tuag .
- Tom qab peb zaug kev sib tham zoo li no, tus naj npawb ntawm cov hlwb tuag tau nce ntxiv ntawm 65% thiab 70% .
Qhov ntawd txhais tau hais tias cov teeb UV no muaj peev xwm rhuav tshem peb cov hlwb tawv nqaij.
Tiam sis zaj dab neeg tsis xaus rau ntawd. Thaum cov hlwb uas tseem muaj sia nyob raug kuaj xyuas, cov kws tshawb fawb pom tias lawv kuj raug puas tsuaj. Tshwj xeeb, DNA , uas khaws cov ntaub ntawv caj ces ntawm lub hlwb, thiab mitochondria , uas ua haujlwm ua lub chaw tsim hluav taws xob ntawm lub hlwb, raug puas tsuaj. Lawv kuj pom tias qee qhov kev hloov pauv (kev hloov pauv) uas tshwm sim thaum DNA raug puas tsuaj li no zoo ib yam li cov uas pom hauv cov hlwb mob qog nqaij hlav.
Yog li ntawd, peb puas yuav tsum ntshai tam sim no? Qhov kev pheej hmoo tiag tiag yog dab tsi?
Zoo, nyeem qhov no yuav ua rau koj ntshai. Tej zaum koj yuav xav tias, "Auj, kuv ua rau tes ib zaug ib lub lim tiam, kuv puas yuav mob qog noj ntshav thiab?"
Tos, tsis txhob txhawj. Cia peb piav qhia ob peb yam.
Ua ntej tshaj plaws: Qhov no yog kev tshawb fawb ua nyob rau hauv chav kuaj siv cov hlwb. Cov kws tshawb fawb lawv tus kheej hais tias ntxiv mus, kev tshawb fawb mus sij hawm ntev, tej zaum yuav kav ntev li kaum xyoo , yog qhov xav tau los qhia meej tias qhov no yuav cuam tshuam li cas rau tib neeg txhais tes hauv lub neej tiag tiag.
Qhov thib ob thiab qhov tseem ceeb tshaj plaws: Qhov kev pheej hmoo nyob ntawm seb koj raug nws ntau npaum li cas . Xav txog nws, muaj qhov sib txawv loj ntawm qhov kev pheej hmoo ntawm ib tus neeg uas mus rau kev tshoob kos ib xyoos ib zaug thiab ua rau tes gel, thiab qhov kev pheej hmoo ntawm ib tus neeg uas mus rau lub salon ib zaug txhua ob lub lis piam. Nrog rau kev raug UV ntau zaus, kev puas tsuaj rau daim tawv nqaij nce ntxiv ('kev puas tsuaj tag nrho').
Txawm li cas los xij, qhov no tsis tuaj yeem saib yooj yim. Cov kws tshawb fawb xaus lus tias, "Muaj pov thawj muaj zog tias cov hluav taws xob tawm los ntawm cov tshuab ziab rau tes UV no yuav ua rau mob qog nqaij hlav ntawm tes."
Kuv ua tau dab tsi los tiv thaiv kuv tus kheej?
"Zoo, yog li kuv puas yuav tsum tsis txhob ua cov rau tes gel kiag li?" tej zaum koj yuav xav tsis thoob. Yeej tsis yog li ntawd. Tab sis, nws zoo dua yog tias peb ua qhov no ntse dua thiab muaj kev nyab xeeb dua. Hauv qab no yog qee yam yooj yim uas koj tuaj yeem ua.
| Txoj kev nyab xeeb | Yuav ua li cas |
|---|---|
| Txo qhov zaus | Tsis txhob ua cov rau tes gel txhua lub lim tiam, tsuas yog ua rau cov rau tes tshwj xeeb xwb. Qhov ntawd txhais tau tias yuav tsum txo cov sij hawm uas koj ua rau cov rau tes ntawd. |
| Siv tshuaj pleev thaiv hnub. | Ua ntej koj mus rau lub salon li 20 feeb, thov pleev tshuaj pleev thaiv hnub rau ntawm koj txhais tes. Xaiv ib qho uas muaj ntau yam thiab muaj SPF 30 lossis siab dua. |
| Hnav cov hnab looj tes tiv thaiv. | Muaj cov hnab looj tes tiv thaiv UV uas ua tshwj xeeb rau lub hom phiaj no, tsuas yog pom cov ntiv tes xwb. Hnav cov no ua ntej pleev cov rau tes gel. |
| Xav txog lwm txoj kev xaiv | Yog tias koj txhawj xeeb txog qhov no heev, koj tuaj yeem siv cov xim pleev rau tes uas tsis tas siv lub teeb UV. |
| Saib xyuas koj daim tawv nqaij. | Xyuas koj txhais tes tsis tu ncua seb puas muaj cov pob tshiab, cov pob khaus, lossis kev hloov pauv ntawm cov xim lossis qhov loj ntawm cov pob uas twb muaj lawm. Yog tias koj pom ib yam dab tsi txawv txawv, mus ntsib koj tus kws kho mob tam sim ntawd . |
Tshwj xeeb tshaj yog tias ib tug neeg hauv koj tsev neeg tau muaj mob qog nqaij hlav, lossis yog tias koj muaj daim tawv nqaij dawb heev uas yooj yim kub hnyiab, nws yog ib qho tseem ceeb heev uas yuav tsum xav ob zaug txog qhov kev pheej hmoo no thiab tham nrog koj tus kws kho mob txog nws ua ntej yuav cov rau tes gel.
Cov Lus Qhia Txog Kev Coj Mus Tsev
- Cov tshuab ziab UV uas ziab cov xim pleev rau tes gel tso tawm cov duab UV-A uas tuaj yeem ua rau cov hlwb tawv nqaij puas.
- Cov kev tshawb fawb tsis ntev los no tau qhia tias cov teeb ci no tuaj yeem ua rau cov cell tuag thiab ua puas rau DNA ntawm cov cell uas tseem tshuav, uas yuav ua rau muaj kev pheej hmoo ntawm mob qog nqaij hlav.
- Qhov kev pheej hmoo no nyob ntawm seb koj siv cov khoom siv no ntau npaum li cas. Kev siv ntau zaus ua rau muaj kev pheej hmoo ntau ntxiv.
- Tsis txhob ntshai, ua neeg ntse. Tej yam yooj yim xws li txo kev siv, pleev tshuaj pleev thaiv hnub, thiab hnav hnab looj tes tiv thaiv yuav pab tiv thaiv koj tau.
- Yog koj pom muaj kev hloov pauv txawv txawv ntawm daim tawv nqaij ntawm koj txhais tes lossis yog koj muaj kev tsis ntseeg, nrog koj tus kws kho mob tam sim ntawd.
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Tsis muaj lus teb tau muab tso tawm. Ntxiv koj cov lus tawm ntawm no thawj zaug.
Ntxiv koj cov lus