A Columbia University study found that actively de-stressing could bring the color back to gray hairs — but there's a lot we still need to figure out.Mashable is your source for the latest in tech, culture, and entertainment. Subscribe to Mashable: https://bit.ly/2DR64oMFollow us:Check out https://mashable.com/Facebook: https://www.facebook.com/mashableTwitter: https://twitter.com/mashableInstagram: https://www.instagram.com/mashableDid you miss our previous article... https://healthvideos.club/anti-aging/how-to-reverse-greying-of-hair-naturally-5-best-home-remedies-for-premature-greying-hairs
