A faulty diet and mental worries are the two primary causes of premature greying of hair. It is mainly due to the lack of some of the B vitamins, of iron, copper and iodine in the daily diet that this hair disorder is caused at a young age these days. Mental worries produce an extraordinary tension in the skin of the scalp which interferes with the supply of vital nutrition necessary for the health of the hair. Similarly, anxieties, fear, jealousy and failures have adverse effects on the hair.