Greying of hair

Silvery strands are one of the more conspicuous signs of aging. That said, getting gray hair doesn't necessarily mean you're closer to the end of your life span than anyone else your age.

Early gray hair may not mean anything other than your genetics are kicking in. Different people gray at different rates—and that's normal. However, graying can happen for other reasons as well, including stress.

Here's how and why graying hair happens, plus what you can do if you want to potentially reverse it.