By 22, he was pretty much totally gray. Why does that happen? And why does hair turn gray in the first place? There's something about a silver fox, if you can pull it off. Actor: When I got rid of ...

First they identified 323 proteins that tell us whether a hair was gray, white, or colored at any point in its history. Then they snipped colored and gray hairs from 14 participants who listed and ...

This is because Dr. Harris studies the melanocyte stem cells that reside within our hair follicles and it is the loss of these stem cells that causes gray hair ... stem cells and other skin cells ...