Question

why do old people have white hair instead of black hair

Answer 1

hey there !!

The DNA in the cells which produce melanin in the hair begins to change or degrade as we age, and stops producing as much melanin. This change to DNA can also be caused by stress of illness, but in those cases, is often reversible.

it mostly happen according to age ,, or at setting of age of an person ,

but in today's world it become common in child , teenagers too it is because of using hair jel, hair oil( of weird and different different companies )

so,,

hope it helps !!

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Answer 2

it's actually because when they are getting old they become more weak, so, b when they get weak their hair will lose it's color

(i'm not sure)