The effects of antigravity are hair-raising — and hair-graying. When US astronauts Barry “Butch” Wilmore and Sunita Williams touched back down to Earth after their prolonged nine-month ...

Melanocytes, which are cells that produce melanin, are responsible for hair color. Over time, their number decreases, making ...

Is grey hair ageing? Yes, it can be, but it's all about how you look after it, which can make it look more youthful. Many celebrities are embracing greys, from women in their 40s and older, such as ...