For example, during the Spring and Autumn Period and the Warring States Period in China, Wu Zixu, a doctor of the State of Wu, suddenly became white-haired overnight in order to muddle through Zhaoguan. Du Fu's poem: I stroke my white hair. It has become so thin that it can no longer hold hairpins.
Hugo, a French writer, described in his Les Miserables that when the mayor of Hou Delin decided to admit that he was a prisoner in court after a fierce and painful ideological struggle, "his gray hair turned white after only one hour".
Both historical legends and literary descriptions are exaggerated, but after all, it shows that people have long thought about it and found that the change of hair from black to white is related to mental factors.
Extended data:
First, the reasons for long white 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.
Second, prevention:
1, stay 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 accelerating 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.
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 darker.
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 to 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.
References:
Baidu encyclopedia-white hair