6 Things You Didn't Know About Gray Hair
While some women proudly sport a silver mane, most of us face the arrival of new gray hairs with dread. The good news: Scientists are hard at work on how to prevent the salt-and-pepper look. So what do researchers know that you don't? 1. Normal aging is the biggest culprit. Okay, no surprise here. Dermatologists call this the 50-50-50 rule. "Fifty percent of the population has about 50 percent gray hair at age 50," says Dr. Anthony Oro, professor of dermatology at Stanford University. And like skin, hair changes its texture with age, says Dr. Heather Woolery Lloyd, director of ethnic skin care at the University of Miami School of Medicine. Related: 9 Ways Your Hair is Aging Your Look 2. Your ethnicity makes a difference. Caucasians tend to go gray earlier - and redheads earliest of all. Then Asians. Then African-Americans. Scientists haven't figured out why yet. 3. Stress seems to play a role. Stress won't cause you to go gray directly," says Dr....