Why do we grow grey hair after a while? How does it lose it's color? What determines it's

You know, like some blonde people go really white, and some brunette people have dark grey hair?

Why do we grow grey hair after a while? How does it lose it's color? What determines it's shade or whatever?

The pigment cells in our hair follicles gradually die as we age. When there are fewer pigment cells in a hair follicle, that strand of hair will no longer contain as much melanin and will become a more transparent color - like gray, silver, or white - as it grows. As people continue to get older, fewer pigment cells will be around to produce melanin. Eventually, the hair will look completely gray.

Melanin: pigment cells continuously produce a chemical called melanin that gives the growing shaft of hair its color of brown, blonde, red, and anything in between.

Why do we grow grey hair after a while? How does it lose it's color? What determines it's shade or whatever?

horomones.

that or it just senses your life is starting to fade so it does too

Why do we grow grey hair after a while? How does it lose it's color? What determines it's shade or whatever?

Hair color is determined by the amount of pigmentation, among other things. So, as hair ages, along with your body, and starts to lose it's pigmentation, it starts to gray. But, since it was blonde to begin with, it already had a different amount of pigmentation than the brunette next door, so naturally, it will gray differently as well.