Human Anatomy and Physiology

What is the growth cycle of hair?


Wiki User

20 years each hair, but after a certain age , I thik 20 months. Each hair can grow and fall 6 times. so if we count 20x 6 = 120 years, but this is unfortunally contridected by the fact that after a certain age (maybe35, maybe 40 , maybe 50 years some people never have this) the hair cycle is 20 months, so 20 x 6 = 120 months (10 years , total bald, no more hair left)