Hair is made from a protein, called keratin. The average growth of healthy hair is about 1.25 centimeters per month. Although hair covers the entire body, its amount, distribution, color, and texture vary considerably according to location and among males and females, infants and adults, and ethnic group.

There are several types of hair, including normal, dry, and greasy hair. The hair reacts to the foods you eat, and these in turn should provide the hair with the minerals and vitamins it needs in order to grow properly. If inadequately nourished, it becomes weak and eventually hair loss occurs.

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