There are melanocytes in the growing areas of hair and hair follicles. Melanocytes can produce melanin.

In some cases, such as malnutrition, long-term mental stress, or due to some endocrine diseases, such as pituitary or thyroid diseases, pigment cells will reduce or even stop the secretion of melanin, making the newly grown hair shafts lighter or even whiter. Therefore, long white hair is the first new root to grow white.

Some may be due to the suspension of melanin secretion, which leads to white hair at the root, or it may be due to the fact that one part is white hair first, then the function of pigment cells recovers, and the last part is black hair, which makes white hair distributed at the tip, thus forming the illusion that the tip is white first.

Ufa usually starts from the roots. In order to make white hair black, you can often eat foods rich in copper and iron, such as potatoes, spinach, tomatoes, persimmons, beans, black sesame seeds, walnuts, sunflower seeds, animal livers and so on. These foods are rich in pantothenic acid, which can accelerate the synthesis of black particles and promote hair follicles to grow black hair.

The occurrence of hoary head is mostly related to neurological factors, malnutrition, endocrine disorders and chronic wasting diseases.

Trace elements are closely related to hair color. In order to prevent premature baldness, we should pay attention to eating more foods containing iron and copper in our diet.

Iron-rich foods include animal liver, eggs, black fungus, kelp, soybeans, sesame paste and so on. Foods containing more copper include animal liver, kidney, shrimp and crab, hard fruit, dried apricots and dried beans. Pay attention to the intake of B vitamins.

By eating underground tuberous roots, how to absorb a lot of trace elements, how to stimulate hair roots and grow black hair, such as Polygonum multiflorum Thunb, cooked sweet potato, potato and taro.

Extended data

Modern medicine believes that baldness is mostly related to neurological factors, malnutrition, endocrine disorders and chronic wasting diseases.

Traditional Chinese medicine believes that this disease is mainly caused by liver and kidney deficiency and qi and blood loss. Congenital baldness is mostly related to heredity and difficult to treat; Acquired alopecia should be treated according to the etiology, and nutrition should be strengthened.

Experiments show that protein deficiency and high malnutrition are one of the reasons for premature gray hair. Lack of trace elements such as copper, cobalt and iron in diet can also cause hair to turn white.

In recent years, scientists have found that pigment particles in hair contain a mixture of copper and iron. When the nickel content in black hair increases, the hair will turn gray. Golden hair contains titanium; Auburn hair contains molybdenum; Brown hair contains titanium and copper.

It can be seen that trace elements are closely related to the color of hair. In order to prevent premature baldness, we should pay attention to eating more iron and copper foods in our diet.

Iron-rich foods include animal liver, eggs, black fungus, kelp, soybeans, sesame paste and so on. Foods containing more copper include animal liver, kidney, shrimp and crab, hard fruit, dried apricots and dried beans. Pay attention to the intake of B vitamins.

Medical scientists have now confirmed that the lack of vitamins B 1, B2 and B6 is also an important cause of baldness. The intake of such foods should be increased, such as cereals, beans, dried fruits, animal livers, hearts, kidneys, milk, eggs and leafy vegetables. Also pay attention to eat more foods rich in tyrosine.

The formation of melanin is formed by tyrosinase oxidizing tyrosine. In other words, the basis of melanin formation is tyrosine, and tyrosine deficiency can also lead to baldness. Therefore, we should eat more foods rich in tyrosine, such as chicken, lean beef, lean pork, rabbit meat, fish, hard fruit and so on.

Grey hair

White hair refers to all or part of white hair, which can be divided into congenital and acquired Congenital white hair often has a family history, especially local white hair, which is more common in the hairline before the head. Acquired white hair includes senile white hair and juvenile white hair. Some are old and weak, with a little white hair.

Adolescent white hair mostly occurs in children and adolescents, and often has a family history. Except for the increase of white hair, it does not affect health. Young people suddenly have white hair, which is related to malnutrition. Generally speaking, there are several reasons for the day after tomorrow: lack of nutrition, long-term mental stress and lack of sunshine.

Traditional Chinese medicine believes that gray hair is caused by kidney yin deficiency, and weak renal function leads to slow down the metabolic function of the body. Therefore, to treat white hair, we must first tonify kidney and yin, and fundamentally regulate it. In addition, some skin diseases such as vitiligo can also lead to white hair.

Normal people usually start to have white hair at the age of 35. If it appears early, you'd better go to treatment. White hair caused by congenital inheritance is difficult to treat, but white hair caused by acquired causes can be improved after treatment.

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