Most people lose between 70 to 150 hairbrushes a day, mostly during washing, shaking or closing hair. The hair loss is usually the result of a hair loss that is more than hair growth. Low hair loss is significant when about 40% of hair loss is lost. Causes of hair loss: Legacy: The cause of most baldness is genetic talent. In other words, hair loss is part of a person's genetic makeup. This individual genetic trait is masculine baldness and is the most common cause of hair loss, genetic baldness or low genetic mutilation. Disease, special physical conditions, or the treatment of some diseases. This includes high fever, thyroid disease, childbirth, inadequate food intake, iron deficiency, cancer treatments, the use of certain drugs and other causes.