1, the influence of disease
Some diseases and treatments can also make hair sparse. Hyperthyroidism, diabetes, lupus erythematosus and other diseases can cause hair loss or hair loss. Some skin diseases, such as tinea infection, can also destroy the function of hair follicles. In addition, chemotherapy and radiotherapy commonly used in the treatment of cancer will lead to hair loss, but this situation will gradually improve with the end of treatment.
2. Stress syndrome
Long-term visual fatigue, excessive mental stress, nervousness, impatience or anxiety, staying up late, etc. Due to mental or physical factors, hair growth cycle will be shortened, hair loss and premature baldness will occur.
3. heredity
Seborrheic alopecia, also known as male alopecia, has obvious hair loss characteristics, that is, hair loss begins at the temples and the top of the head. This problem plagues 35 million men in the United States. This kind of hair loss is usually hereditary and common in families.
4. Malnutrition
Abnormal food and nutrition metabolism, malnutrition, dyspepsia and chronic consumptive diseases can lead to nutritional imbalance or absorption disorder, which will lead to the inhibition of normal hair growth, entering the rest period, thinning, burning, premature gray or falling off. Excessive sugar or salt, protein deficiency, iron and zinc deficiency, selenium excess, etc. , are also the cause of hair loss.
Extended data:
For people with sparse hair and frequent hair loss, it is very important to supplement the following foods reasonably:
1, iron supplement. People who often lose their hair often lack iron. Iron-rich foods include soybeans, black beans, eggs, hairtail, shrimp, cooked peanuts, spinach, carp, bananas, carrots and potatoes.
2. Supplement plant protein. If your hair is chapped, you can eat more foods such as soybeans, black sesame seeds and corn.
3. Eat more fresh vegetables and fruits containing alkaline substances. One of the factors of hair loss and yellowing is that there are acid toxins in the blood, which is due to physical and mental fatigue and long-term excessive consumption of pure sugar and fatty foods, which makes the body metabolize and produce acid toxins. Acidic substances in liver, meat, onions and other foods are likely to cause too many acidic toxins in the blood, so eat less.
4. Supplement iodine. The luster of hair is related to the function of thyroid. Iodine supplementation can enhance the secretion function of thyroid gland and is beneficial to hair bodybuilding. You can eat more kelp, seaweed, oysters and other foods.
5. Supplementing vitamin E can resist hair aging, promote cell division and make hair grow. Eat more fresh lettuce, cabbage, black sesame and so on.
6, others, eat more black food such as black sesame, Polygonum multiflorum, black beans and so on. Promote hair growth, and often eat celery, coriander and broccoli to prevent hair loss.
References:
Baidu encyclopedia _ hair