白发原因（White hair why）.doc

白发原因（White hair why） The reason why the hair color is caused by the hair color is the number of pigment particles in the hair, which is related to the development and growth of the root papillary pigment cells. Hair is black and white, usually hair pigment cell function decline, when the recession is completely unable to produce pigment grain, the hair is completely white. The hair pigment cells began to decline from the age of 35. And some people in 20 years old is white, medically call young white hair, commonly known as young white head. The causes of young and white head are complicated, which are related to heredity, constitutive factors and various factors. The end of nature. There are many causes: malnutrition, such as lack of protein, vitamins, and certain trace elements (such as copper), can make hair white. Some chronic wasting diseases, such as tuberculosis, have been whiter than the average person because of nutritional deficiencies. Some chronically febrile patients, the hair can be yellowish or even whitening; Some endocrine diseases, such as pituitary or thyroid diseases, can affect the ability of pigment cells to produce pigment particles and cause hair to be prematurely white. Encephalitis, nervous system lesions can also make hair white; The skin, hair and eyebrows of albino patients are white; The disease with whitening skin -- vitiligo, if it happens on the scalp, the hair will turn white; Others believe that the more you use your brain, the sooner your hair is white. Some young people in a short period of time, hair large change white, is related to excessive anxiety, sadness and other severe mental trauma or mental overfatigue. The food therapy of young and white head. The black sesame is also known as hu ma, the sexual gan, ping, non-toxic. Function: nourishing liver and kidney, moistening the five viscera. Due to the deficiency of liver and kidney, the result of physical weakness, premature and premature aging, premature and premature aging,