Follicly challenged: Exploding the myths that lie beyond the fringes

According to Damien von Dahlem of Hair News Magazine, one of the many hair myths is that you can go grey overnight.

Von Dahlem says hair on your head and face have different properties, but that no matter what you do - or what you take - hair grows at a constant rate of exactly half an inch a month.

Split ends can't be repaired and should be cut off immediately or they'll split higher and do even more damage, he says.

Brushing your hair a lot is bad for it and a major cause of split ends and hair breakage.

'Hats also cause hair breakage and to a lesser degree, split ends,' he says.

'Hair receives its colour genetically and can only turn grey or white over very long periods of time, but not overnight, or even after a wild weekend. It actually loses colour rather than turns white.'