Cov neeg muaj cov plaub hau liab yuav nyob ntev heev yog tias lawv kawm tau qhov tseeb txog lawv cov noob ...
Tibneeg lub neej yeej yog lub tswvyim ntawm cov hluas uas nyob mus ibtxhis, tabsis tam sim no nws tseem tsis tau nrhiav ib qho kev piav qhia vim li cas thaum nyob rau tib lub sijhawm thiab tib lub sijhawm tib neeg txhua tus nyias txawv nyias. Feem ntau, cov hluas nkauj zoo nkauj thiab noj qab nyob zoo hauv 50-60 xyoo yog piav qhia los ntawm kev pw tsaug zog zoo thiab noj zaub mov zoo, tab sis qhov no tsis yog qhov tseeb. Nws muaj ntau yam piv txwv tias cov tib neeg muaj teeb meem tsis zoo thiab lub caij nyoog ua haujlwm hnyav ua rau ntev ntev. Li ntawd, yog dab tsi yog qhov pub leejtwg ntawm cov tub ntxhais hluas ces? Cov kws tshawb fawb tau nrhiav lo lus teb rau lo lus nug no: nws yog nyob rau hauv lub npe hu ua "liab" noob.
Tus "liab" noob yog dab tsi?
Kev txhim kho hauv kev to taub tias vim li cas qee cov tib neeg saib xyuas tag nrho txoj kev txawm nyob rau hauv hnub nyoog laus, cov kws tshawb fawb tau ua tiav los ntawm kev kawm tib neeg DNA. Nyob hauv txoj cai ntawm txhua tus neeg, qhov MC1R gene yog tus kws kho mob, uas yog lub luag haujlwm rau kev tiv thaiv lub cev tawm ntawm ultraviolet radiation. Qhov no yog qhov hluav taws xob uas cuam tshuam cov laus ntawm daim tawv nqaij: qhov tsos ntawm wrinkles, dryness thiab pigmentation me ntsis. MC1R minimizes nws ua mob rau cov epidermis, ces sab nraud tawv nqaij hloov tshwm hauv cov neeg ze rau 50, thiab tsis mus 10 xyoo. Txoj kev xav pom ntawm cov noob no yog cov kws tshawb fawb hauv University of Erasmus hauv lub Netherlands.
Ua ib feem ntawm lawv txoj kev kawm, cov kws kho mob tau kuaj DNA ntawm 2,693 tus neeg thiab tseem tshawb xyuas cov tawv nqaij ntawm cov tawv nqaij seb lawv puas pom yau dua lawv lub hnub nyoog. Nyob rau hauv cov saw ntawm cov noob ntawm cov uas nws cov tawv nqaij tsis xav ua raws li cov cai ntawm natural laus, thiab MC1R tau pom. Tib lub noob yog lub luag hauj lwm rau cov plaub hau liab xim - yog vim li cas nws thiaj li hu ua "liab" noob.
Cov menyuam yaus ua li cas rau ntawm qhov xim li cas?
Qhov no puas txhais tau hais tias cov neeg tawg rog uas muaj quav hnav yeej zoo dua li lawv cov phooj ywg? Muaj tseeb tiag, yog. Cov mob ntawm lawv cov tawv nqaij tau tsawg kawg yog ob xyoos "lags" hauv kev laus los ntawm qav-haired thiab blondes. Thaum nws muab tawm, cov neeg sawv cev ntawm University tau txiav txim siab los txuas ntxiv cov kev tshawb fawb kom paub tias dab tsi yuav laus laus cov neeg nrog lwm cov plaub hau xim thiab tawv nqaij tsis muaj quav hnav.
Xib fwb Ian Jackson tau ua pov thawj tias cov neeg uas muaj pigmentation daj thiab lub teeb xim plaub hau yuav zoo dua qub hauv hnub nyoog laus dua cov tawv nqaij uas tawv dub. Lawv yuav tsum muaj qhov muag xiav, grey los yog ntsuab kom haum raws li "xim daj" xim. Qhov kev tshawb nrhiav kws tshawb fawb (genetic research scientists) hu ua "kev sim ntawm pom hnub nyoog."
Ian hais tias:
"Cov kauj ruam tom ntej yog kev tsim cov khoom uas yuav qhib tau cov noob no rau txhua tus neeg, tab sis tsis ntev li ntawd txoj kev paub tsis muaj rau peb."
Cov kws tshawb fawb yeej tseem tsis tau to taub txoj ntsiab cai ntawm lub MC1R noob qhov kev txiav txim thiab "cais tawm" ntawm qhov muag ntawm cov noob zoo ib yam. Tab sis lawv paub tseeb tias sai sai no lawv yuav muaj peev xwm tsim tau ib lub tshuaj, tom qab uas txhua leej txhua tus yuav saib tau cov hluas thiab zoo nkauj.