"White hair is the hair of wisdom", which is ostensibly a compliment to the white hair that grows with age, but in fact it is a compliment to the growing wisdom of life experience. However, it seems that this sentence can be quoted to comfort the white-haired youth after different times. The living environment of modern people has greatly increased the number of people with obvious white hair after 30 years old, and people with white hair at 50 years old are very common. What is even more worrying is that the teenage boy Lang has a few white hairs in his black hair. Han Yu once said that he is not forty years old, which is a premature aging phenomenon. But now the aging white hair has quietly climbed the top of the carefree teenager's head. What is wrong with our living environment?
Oxidation will eat melanin. In fact, the young white is not really aging. Diseases and drugs make the cell metabolism of dermal papilla incomplete, which is also a problem that scientists are trying to find the answer. The basic cause of white hair is the oxidation of protein tyrosine in hair melanocytes, which makes the black hair contain no melanin and forms white hair. The affected areas of common leukoplakia, tinea capitis and round alopecia may produce white hair due to the oxidation of tyrosine. In addition, in recent years, the aging public enemy free radicals called by medical experts are also the main cause of white hair.
Free radicals are by-products of human respiratory metabolism. Its powerful destructive effect will attack protein, lipids, nucleic acids and polysaccharides, make cells pathological, change DNA genetic information and promote aging. In addition to self-generated free radicals, there are also elements that stimulate free radicals in air, water, food, radiation, drugs, pesticides, preservatives, cigarettes, carbon monoxide, carbon dioxide and solar ultraviolet rays.
The oxidation of free radicals leads to the change of tyrosine in melanocytes, resulting in white hair. Originally, the scavenger enzyme of our immune system would automatically remove free radicals and inhibit white hair. However, aging, disease, stress and bad environment offset the power of body-cleaning enzymes and need to be supplemented from the outside. For example, foods containing anti-free radicals, vitamins E, C and B carotene, etc. Both have the effects of eliminating free radicals and avoiding premature gray hair.
Hair is getting less and less, face is getting bigger and bigger. Although the man with a childlike face is getting bigger and bigger, it is hard to ignore the fact that his hair is getting less and less. Various methods may have been exhausted, such as hair transplantation; I also rubbed all kinds of hair care agents, and spent a lot of money and time without starting with the basic problems; In fact, hair loss is almost a male patent, because most baldness has a direct and indirect relationship with male Hermon surplus.
After the male hermon enters the hair mother cells of the hair roots, the cell division of the hair roots stops. At first, my hair became thinner, and then it fell out. Finally, the smooth scalp is exposed, the pores are closed and the hair mother cells enter the stage of suspended animation. Too many men with black hair are not the only reason for the death penalty for hair. When there is a problem with the tightly grasped Hermon receptor, too many male Hermons will enter the hair mother cells. So the main cause of baldness is genetic constitution.
Women are not prone to hair loss, because the amount of hormones in men is only 1/20 of that in men. However, if the constitution belongs to the male hermon, there is an abnormal receiver problem, although it is not completely bald, it is also soft and sparse. Most of the baby boys born to such women will also suffer from genetic baldness.
Excessive androgen secretion means that sebum secretion is also strong. Sebum can block pores, make hair roots lack oxygen, blood supply is insufficient, and scalp tissue is malnourished, resulting in incomplete hair hardening and weak hair. The sebum on the scalp surface will also attach dust bacteria. If it is not kept clean enough, it will cause inflammation of the hair mother, further affect the hair root division and worsen the baldness problem.
There are basic maintenance methods to prevent baldness and curb baldness, which are simple and feasible, as long as they are persistent and diligent.
First: massage the scalp. Massage promotes blood circulation and provides sufficient nutrition for hair mother cells. Draw a small circle from the hairline to the center of the head with your fingertips for 5 minutes every day; Or knead and gently buckle; If the shoulder and neck are often sore, it means that the blood supply to the head is also insufficient. Don't forget to scratch your neck to increase blood flow to your head.
Second: medicine and food are homologous. Eating food is good for scalp health and prevents hair loss. Eat less animal fat, high-fat food and sweets to avoid stimulating androgen secretion. Eat more trace elements such as kelp to promote hair development. In addition, the main component of hair is protein, and fish, beans and dairy products with ideal structure in protein are also highly absorbed and utilized, which contributes to the growth of healthy hair.
Excessive use of the brain always makes my scalp itch. If you scratch and scratch unconsciously, you will get dandruff all over your shoulders. Using cool shampoo can inhibit hair growth; However, when there is too much dandruff, think about whether there is too much scalp oil, the shampoo is not clean, or the scalp regeneration cycle is too fast? When choosing a shampoo to suppress dandruff, be careful not to use the same brand for a long time to avoid dependence.
Too dry scalp can also lead to dandruff and itching, which can be improved by reducing the number of shampoos and adding conditioner to moisturize the scalp.
Excessive brain activity often makes capillaries in a state of excitement and expansion, which affects the normal operation of scalp and hair and causes damage to scalp and hair. The basic maintenance methods are nothing more than massage and a balanced diet. There are also good ways to care for hair in life; For example, cleaning bedding frequently and choosing antibacterial and breathable soft fibers are all details that can not be ignored in maintaining scalp and hair health. Hair growth cycle and hair care diet
Hair grows by the division and proliferation of dermal papilla cells in the hair bulb, which is generally called active period. From division and proliferation, gradually inactive, leading to aging. Generally speaking, this period is called degeneration period (the hair that has completed its historical mission will fall off by itself soon after entering dormancy period). When your hair is aging, don't pull it out by hand. After three or four months, the aging hair will fall off on its own. After the old hair is taken off, the nipple will start to move again, and new hair will gradually come out. We call the time from new hair to aging, generally three. In a healthy state, hair can grow about 1 cm in a month, but the growth rate of hair is not absolutely constant, and it is also affected by season and age. Hair grows fast in spring and summer and slowly in autumn and winter. After fully mastering the structure and characteristics of hair, it is very necessary to trim it accordingly. (1) Normal hair with normal sebum secretion, luster and elasticity.
(2) oily hair, excessive sebum secretion, sticky head epidermis and hair.
(3) Dry hair feels dry and loose due to too little sebum secretion. We can think that the nature of hair is the same as skin, facial sebum belongs to dry people, and hair is also dry. Food that is beneficial to increase hair nutrition. Most of the main nutrients needed for hair come from green vegetables, potatoes, beans and seaweed. Green vegetables: spinach, leek, celery, bell pepper, green asparagus, etc. Green vegetables can beautify the skin, help the movement of melanin, keep the hair black forever, and because these vegetables are rich in fiber, they can continuously increase the number of hair. Beans: Soybeans can increase the luster, elasticity and smoothness of hair and prevent splitting or breaking. Seaweed: Seaweed, kelp and Undaria pinnatifida are rich in calcium, potassium and iodine. It can promote the metabolism of brain nerve cells and prevent white hair. In addition, sweet potatoes, yams, bananas, pineapples and mangoes are also good foods for hair growth and development. Fourth, factors that are not conducive to hair growth: cakes, fast food, carbonated drinks, ice chess, etc. Most of these foods are the favorite of young women. Eating too much will affect the normal growth of hair, and it is easy to have curly hair or white hair. Smoking too much will also affect the growth of hair. Uneasy mood or living in a cold room, as well as nervousness and anxiety, will affect the normal growth of hair. People who work in damp and cold rooms for a long time are prone to hair thinning, scalp enlargement, hair loss, hair breakage and other phenomena, especially the hair on the top of the head will become more and more sparse because of gastrointestinal cold, irregular metabolism and blocked blood circulation. Therefore, people who work in cold rooms for a long time should always wear cotton-padded clothes or thick cotton-padded fabrics to resist the adverse effects of long-term work in cold conditions, and pay attention to diet, and don't drink too cold drinks or eat too cold food.