Black hair is a symbol of youth and beauty. Melanin is a pigment which is responsible for our hair color. This pigment decreases with age and the hair becomes grey and finally turns white. There are many reasons which can cause premature graying such as fried food, junk food, excessive intake of tea and coffee, smoking, thyroid malfunction, constipation, use of dryers, heredity, prolonged exposure to heat and sun, excessive alcohol, chemical pollutants, mental tension, impoverishment, nutriti...
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