Although the causes of gray hair are not yet fully understood, the common clinical inducing factors are: chronic diseases, endocrine disorders, nutritional deficiencies, family inheritance and so on. Modern medical psychology research also found that emotional disorders can also make hair white. This is because the busy study and work can not be relieved and relaxed, and psychological stimulation such as worry, excessive brain use and long-term mental stimulation will shrink the blood vessels that supply hair nutrition, and then hinder the function of hair papilla to produce melanin. Even if it can produce melanin, it can produce a lot of white hair in a short time because the input channel is blocked. This is the old saying, "smile, it is ten years old; Sorrow, white head ". So, how should teenagers prevent and treat the problem of long white hair? Generally speaking, we can start from the following aspects: 1, and remain optimistic. Being optimistic about life and keeping a happy mood will help your hair to be black and bright. Don't put your psychological world in despair even if you encounter something unsatisfactory, even misfortune. Because this is tantamount to punishing yourself with other people's mistakes, which will not only help, but also be counterproductive and even cause greater misfortune, thus speeding up the pace of gray hair. 2. Strengthen nutrition. Hair will turn white when it loses the nutritional supply to maintain normal pigment. Many scientific studies have proved that nicotinic acid, p-aminobenzoic acid, carotene and citric acid in vitamins play an important role in the formation and metabolism of pigments. If there are obstacles or changes in their absorption, storage and utilization, moss will turn into hoarfrost. In diet, food contains vitamins B 1, B2, B6, nicotinic acid and so on. It must not be lacking for a long time, otherwise the hair will turn from black to gray and then white. Scientific research in recent years also shows that. Lack of some trace elements, such as copper and iron, can also make hair white. Therefore, in order to prevent and treat alopecia, we should pay attention to our diet and eat more beans, vegetables, fruits and miscellaneous grains rich in vitamins in order to fully absorb the nutrients that produce black hair. The livers of various animals contain a lot of copper, and tomatoes, potatoes and spinach also contain a certain amount of trace elements such as copper and iron, so they should be eaten properly. Of course, people with gray hair due to lack of vitamins can also take vitamins B2, B6 and multivitamins, but this is not immediate and needs to be taken under the guidance of a doctor for a long time. 3. Treat diseases. Some infectious diseases and chronic focal inflammation. Such as dental caries, tonsillitis and suppurative sinusitis. It can also cause white hair through bacterial action and nerve reflex. In endocrinology, pituitary gland, adrenal gland and autonomic nervous system are closely related to the secretion function of black excitatory hormone, which promotes the formation of melanin. Endocrine is normal, black excitatory sex hormones are secreted more, melanin is formed more, and hair color is deeper; On the contrary, white hair will be overgrown. In addition, sexual dysfunction can also lead to white hair. Therefore, in order to prevent white hair, the above diseases must be treated as soon as possible. 4, massage the scalp. In order to prevent white hair, you can draw a small circle on the scalp with your index finger and middle finger after getting up in the morning and before going to bed, and rub the scalp: first from the forehead to the occipital bone, and then from the forehead through the temples on both sides to the occipital bone. Massage every time 1 ~ 2 minutes, rub back and forth for 30 ~ 40 times per minute, and then gradually increase to 5 ~ 10 minutes. This massage can accelerate the local blood circulation of hair follicles and make the papilla get sufficient blood supply. In this way, the nutrition of pigment cells in the hair bulb is improved, the cell activity is enhanced and the division is accelerated, which will be beneficial to the secretion of melanin and the blackening of hair. 5. comb your hair diligently. Combing one's hair frequently is also a physical massage method, which originated from Chao Fangyuan, a medical scientist in Sui Dynasty. In "On the Root of Disease and White Hair", he thought that the root cause of white hair was weakness and malnutrition, so he had the idea that "hair will not turn white when it is 1000 times more than combing hair", that is to say, combing hair often can prevent hair from turning white. This is very scientific: combing your hair diligently can not only keep the scalp and hair clean, but also accelerate blood circulation and increase the nutrition of the pore head, thus preventing the hair from turning white.

Treatment and prevention of gray hair: 1. Patients should be cheerful, don't worry too much, don't be too nervous, and work and rest should be combined. As the saying goes, "laugh, ten years; One is sad and the other is white. " 2. Adjust the diet structure, don't be partial to food, and eat more beans and vegetables. The internal organs of various animals contain more copper. Persimmon, tomato, potato and spinach also contain a certain amount of trace elements such as copper and iron, which are essential raw materials for melanin synthesis. You can eat more if you can. 3. Polygonum multiflorum Thunb. Tablet and Qibao Beauty Dani are effective in treating white hair. Scalp massage is helpful to treat white hair.

In fact, I personally think it is most important to keep a good attitude, and don't be too nervous! Learn to relax yourself! Everything has a solution. Be optimistic! So there will be no disease! !