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What are the common types of hair loss?
Hereditary alopecia is also often called androgenic alopecia, that is, male alopecia, which is a common type of alopecia. Male hair loss affects not only men but also women, but the probability is slightly different.
Explain the genetic problem of alopecia according to Mendel's genetic law. Male hair loss is affected by dominant genes, so as long as one of the mother or father has hair loss genes, men have the probability of hereditary hair loss, and most of them are bald. Female alopecia is affected by recessive genes. Only when both parents have hair loss genes at the same time, male hair loss will occur, and the performance is mostly sparse.
2. Nutritional alopecia
The phrase "five fruits nourish and five grains are full" makes sense. Adequate and balanced nutrition is beneficial to physical and mental health. However, some women in modern society like dieting. Obesity is advocated, but we should pay attention to the combination of exercise and diet, and don't blindly diet. Hunger caused by dieting will affect people's mood, mental anxiety and irritability, and hair loss is also very common.
3. Chemical alopecia
The development of science and technology is not only reflected in our daily life, but also includes the transformation of human beauty, such as plastic surgery in a big direction and dyeing in a small direction. Is this unnatural improvement really harmless to the body and hair?
Hair dyes are very common. According to the survey, among more than 2,600 people surveyed, people who have dyed their hair account for more than 90%. Monotonous black can't satisfy people's idea of beauty, but one thing may be ignored. It goes without saying that hair dyes generally contain carcinogen p-phenylenediamine.
For hair, changing the external shape of hair through dyeing can achieve psychological satisfaction, but it has indescribable harm to hair. The main component of hair is 70% protein, while protein is easy to deteriorate at high temperature. Dyeing hair will affect the hair follicles at the root of hair, such as itchy scalp, greasy hair and even redness. If you dye your hair too often for a long time, it will fall off.
4. Medical drug alopecia
People who eat whole grains are bound to get sick. As the old saying goes, "A minor illness can cure a serious illness". Some diseases require long-term medication or infusion, which may not only burden the liver and kidneys, but also affect the hair; Especially friends who take drugs will lose a lot of hair and become sparse. This kind of hair loss advocates improving physical diseases first, and then considering preventing hair loss.
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