The body's natural process of renewal involves hair falling out. New growth replaces hair that is falling out. At some point in their lives, most people experience excessive hair loss. This can be caused by a variety of factors including radiation, chemotherapy, medication, stress, hormone and nutritional factors, thyroid disease and generalized or localized skin diseases. Some of these causes are temporary while others are permanent. Hair fall can be caused by aging, styling, and life expectancy. A single hair…