March 12, 2009

The secret of grey hair

For a long while the appearance of grey hair has heralded the onset of old age, this is despite some people going grey in their thirties. This means that people have for decades been using dyes and other treatments to make their hair look like it used to.

The cause of grey hair has always been a mystery, there have been some notions that it was down to testosterone, stress or even cell breakdown, but in reality, the actual cause has not been known.

However, recent research has found that treating the hair from the outside is not the way to go; this is because it seems that hair bleaches itself from the inside. The actual cause is still not known, but the understanding is that the treatment should be coming from the inside too.

Therefore, it is highly likely that grey hair will be prevented in the future with medicine.

Source [NY Times]