There are many reasons for hair loss. Black sesame and walnut kernel have the best effect on alopecia caused by premature senility. Eating these can not only enhance physical fitness, but also promote hair growth. It is also effective for alopecia caused by drugs (such as chemotherapy alopecia) and alopecia caused by certain diseases (such as typhoid fever, paratyphoid fever and lupus erythematosus alopecia), but it is not necessarily effective for seborrheic alopecia and fungal alopecia. Since middle age, due to the changes of endocrine glands, hair follicles often shrink and hair gradually falls off. However, there are also a few people who, although over 70 years old, have bright black hair and look much younger than their actual age. What is the reason? Experts found that p-aminobenzoic acid can blacken hair, and taking p-aminobenzoic acid regularly can treat alopecia and blacken white hair. Foods containing more p-aminobenzoic acid include milk, beef heart, beef liver, eggs, lean pork, soybeans and peanuts. Inositol can prevent hair from falling off. In order to maintain hair and prevent it from falling off continuously, inositol and B vitamins (pantothenic acid, folic acid, p-aminobenzoic acid, biotin, etc. ) can be added to the diet. Eating more foods, vegetables and fruits rich in protein, such as Chinese cabbage, onions, oranges, bananas, apples and peaches, can also prevent hair from falling off and sometimes grow new hair. Hair care: hair is a person's second face. Just staying in skin care, beauty is only half done. Good skin and good hair look good. Speaking of hair care, middle-aged friends should take good care of their daily lives. First of all, choose shampoo according to your hair quality. For dry or neutral hair, you should choose nourishing shampoo; Oily hair should choose refreshing shampoo; If you have dandruff, you can choose dandruff shampoo. Secondly, choose a conditioner that suits your hair. Generally, you can choose a soft and moist conditioner, and friends with dandruff can choose a dandruff conditioner. Third, we should follow accurate methods and steps to care for our hair. In addition, you should eat enough protein in your diet and eat less spicy and greasy food; Don't perm and dye your hair frequently; Don't expose yourself to strong sunlight; Don't overwork, get enough sleep. The most important thing is not to use inferior shampoo and hair care products. When you know the necessary knowledge of hair care and choose the right hairdressing products, you will make your hair shiny every day. Dietary prescriptions to prevent hair loss Now more and more people are suffering from hair loss, and they are getting younger and younger. These extremely intelligent people are often greatly distressed by this. It is true that hair loss is related to the mental stress brought by the rapid and tense pace of life and work and fierce social competition, but insufficient intake of staple food is also a major catalyst for hair loss. Traditional Chinese medicine believes that grains can tonify the kidney, which is full of qi and has more hair. Throughout the ages, health experts have always advocated that a healthy diet requires five fruits and five grains, which means that the human body must consume a certain amount of staple food and fruits and vegetables every day. However, a recent survey shows that the consumption of staple food by modern urbanites is getting less and less, which is already insufficient. This has brought some hidden dangers to health. Insufficient intake of staple food can easily lead to deficiency of qi and blood and kidney qi. According to the theory of traditional Chinese medicine, the kidney is the innate foundation, and its prosperity is prosperous. Therefore, the process of hair growth and shedding reflects the rise and fall of essence in the kidney. People with kidney-qi have thick and shiny hair, while people with kidney-qi deficiency tend to lose hair, wither and turn white. The growth, shedding, moistening and withering of hair are not only related to the rise and fall of healthy qi in kidney, but also closely related to the rise and fall of qi and blood in human body. Old people often lose their hair because of insufficient qi and blood and kidney essence, which is an objective law of human health, growth, strength and aging. Therefore, if young people's hair loss not only affects the overall image, it may also be a signal of kidney deficiency and blood deficiency in the body, and these problems are closely related to the lack of staple food intake. Many people often only pay attention to drinking and eating vegetables at the moment of eating dinner, forgetting or deliberately not eating staple food, which is easy to damage kidney qi due to nutritional imbalance. In addition, if you eat less staple food, you will eat more meat. Studies have shown that excessive meat intake is the main accomplice of seborrheic alopecia. Every healthy adult's daily food intake should be around 400g, at least not less than 300g. Even during the period of losing weight, you can't help eating staple food. In addition, proper intake of some foods that can benefit kidney, nourish blood and promote hair growth, such as sesame, walnut kernel, longan and jujube, will be of great benefit to the prevention and treatment of alopecia. The best way to prevent hair loss (1) is to comb your hair 100 times every morning, which can not only stimulate hair follicles, but also make hair gaps well ventilated. Because hair is the easiest to sweat and covered by hot air, frequent combing can prevent hair loss and dandruff. (2) Change the distribution wires frequently, because if the distribution wires are kept in the same place all the time, the hair will be sparse because the distribution wires are dried by the sun. In addition, changing the hairline frequently can increase the fun of changing various hairstyles.