Why does hair turn gray as people get older?
Why does hair turn gray as people get older?
user
I think it has to do with the balance of different kinds of pigments and cells in hair follicles.
assistant
Right. The pigment cells in hair follicles gradually die so there are fewer pigment cells in a hair follicle. This decrease in melanin means that hair will become more gray, silver, or white as it grows.
user