If you are genetically prone to early balding or greying of hair, you can blame it to your ancestors but largely - hair health depends upon your blood circulation and nutrition. Hair is made up of protein. It is necessary for its repair and growth. Without proteins, hair which is one of the most rapidly growing parts of the body - simply does not grow. A low protein intake can result in a change of hair colour, change its texture makeing it look dull and lifeless, and cause unnecessary thinging. If the protein deficiency is corrected the hair will return back to its normal condition.