Thaum peb laus zuj zus, cov xim xim hauv peb cov hauv paus plaub hau maj mam tuag. Thaum muaj cov xim pigment tsawg dua hauv cov hauv paus plaub hau, cov plaub hau ntawd yuav tsis muaj melanin ntau ntxiv lawm thiab yuav dhau los ua xim pob tshab - xws li grey, nyiaj, lossis dawb - raws li nws hlob.
Puas cov plaub hau grey tig dawb?
Keratin yog cov protein uas ua rau peb cov plaub hau, tawv nqaij, thiab rau tes. Thoob plaws hauv lub xyoo, melanocytes txuas ntxiv txhaj cov xim rau hauv cov plaub hau keratin, muab cov xim zoo nkauj. Nrog lub hnub nyoog tuaj yeem txo melanin. Cov plaub hau tig grey thiab nws thiaj li dawb.
Hnub nyoog twg plaub hau tig dawb?
Feem ntau, cov neeg dawb pib grey nyob rau hauv lawv cov mid-30s, Asians nyob rau hauv lawv 30s lig, thiab African-Americans nyob rau hauv lawv nruab nrab-40s. Ib nrab ntawm cov neeg muaj cov plaub hau grey loj heev thaum lawv muaj 50 xyoo.
hnub nyoog nruab nrab yog dab tsi mus grey?
Lub hnub nyoog uas koj cov plaub hau tig grey txawv ntau ntawm ib tus neeg. Muaj cov neeg uas tau txais lawv thawj cov plaub hau grey hauv lawv nees nkaum xyoo, thiab lwm tus uas tsuas yog pib grey hauv lawv tsib caug. Txawm li cas los xij, lub hnub nyoog nruab nrab uas tib neeg tig grey yog nyob ib puag ncig thaum lawv muaj 30 lossis 35 xyoo.
Vim li cas kuv cov plaub hau tig dawb tsis grey?
Tib neeg lub cev muaj ntau lab cov hauv paus plaub hau lossis cov hnab me me hauv daim tawv nqaij. Cov follicles tsim cov plaub hau thiab xim lossis xim xim uas muaj melanin. Lub sijhawm dhau mus, cov hauv paus plaub hau poob cov xim xim,ua rau cov plaub hau dawb.
