The following is an excerpt.
There could be some truth in the anecdotal belief that stress can turn your hair grey.
The appearance of grey hairs after periods of stress or skin damage could be the result of depletion of stem cells from the base of the hair follicle, according to a new study in mice.
The study, reported in Nature Medicine, may also point to new methods of treatment for skin pigmentation disorders such as vitiligo or piebaldism.
Read the full story here: Stress really may turn your hair grey