Interesting Going Gray

Graying of hair occurs when the natural colour of the hair is replaced with white. This is a result of a halt in production of natural hair colour by the hair cells and an increase in hydrogen peroxide. In males, it is observed that graying begins in the beard, followed by the moustache, the side burns, the top of the head, and finally the chest. In females, graying begins in the temples and then spreads through the side and the rest of the hair.