It is the number of pigment particles in hair that determines the color of hair, which is related to the development and growth of pigment cells in the papilla of hair roots. Hair turns from black to white. Generally speaking, the function of pigment cells in hair decreases. When it drops to the point where it can't produce pigment particles at all, the hair turns completely white. Normal people began to decline at the age of 35. And some people are white at the age of 20. In medicine, they are called juvenile white hair, commonly known as "juvenile white head".
The causes of baldness are complicated, which are related to both genetic and physical factors, as well as various acquired factors.
Congenital baldness The most common people with this kind of baldness often have a family history, and often have white hair at birth, or their hair is whiter than others. In addition, there is no other abnormal performance.
Baldness the day after tomorrow. There are many reasons: malnutrition, such as lack of protein, vitamins and some trace elements (such as copper), will make hair turn white; Some chronic consumptive diseases such as tuberculosis. Due to lack of nutrition, hair turns white earlier than ordinary people; Some patients with long-term fever, hair will turn yellow and brittle or even white and fall off; Some endocrine diseases, such as pituitary or thyroid diseases, will affect the ability of pigment cells to produce pigment particles, leading to premature whitening of hair; Encephalitis, neuropathy, etc. It can also make hair white; The skin, hair and eyebrows of albinos are all white; The disease of skin whitening-"vitiligo", if it happens on the scalp, the hair will also turn white; Others believe that the more you use your brain, the faster your hair will turn white; Some young people's hair turns white in a short time, which is related to severe mental trauma or mental fatigue such as excessive anxiety and sadness.
Dietotherapy for young baldness
1. Black sesame, also known as flax, is sweet, flat and non-toxic.
Function: tonify liver and kidney and moisten five internal organs. Because of liver and kidney deficiency, it is suitable for weak body, dry body fluid, premature aging, premature aging and so on. Has the effect of beautifying and blackening hair.
How to eat: Take 25 pieces of black sesame seeds and mash them, add appropriate amount of rice and cook them into porridge once a day, which has a good effect on "less baldness" and blackening white hair. You can also cook it with kelp. 30 grams of black sesame and 60 grams of japonica rice. First, the black sesame seeds are washed, dried, fried and ground, and then mixed with japonica rice to cook porridge. This porridge has the functions of nourishing liver and kidney and moistening five internal organs, and is suitable for people with weak body and premature gray hair.
2. Lycium barbarum is sweet, flat and non-toxic.
Function: tonify liver and kidney, and treat dizziness and premature gray hair caused by liver and kidney loss.
Edible method: decoct, stew and take orally, 9-15g each time; Soak the ointment in wine, or make it into pills or powder.
3. Polygonum multiflorum Thunb. 30-60g, 5 red dates, brown sugar10g and japonica rice 60g.
First put Polygonum multiflorum Thunb in a small casserole, fry the juice, remove the residue, add washed japonica rice and red dates, add water to cook porridge, and add brown sugar when the porridge is cooked. This porridge has the functions of nourishing blood, benefiting liver, consolidating essence, tonifying kidney and blackening hair, and is suitable for people with premature gray hair and yellow hair. One dose per day, taken twice, 7- 10 days as a course of treatment, and the next course of treatment after 5 days. People with loose stools are not suitable for eating.
Clinical manifestations of alopecia areata
1, onset in adolescence or adolescence.
2. At first, a small number of white heads were scattered in the hair, and most of them first appeared at the back or top of the scalp, mixed with black hair in a gray shape.
3. Later, the white hair can gradually or suddenly increase, but it will not all turn white. Some people keep their white hair for a long time without increasing it.
4. Generally, there are no conscious symptoms.
5. Sudden outbreak may be related to malnutrition.
6. Some patients unconsciously reduce or even disappear their white hair after the inducing factors are eliminated.
7. Some people even have white beards. Chinese medicine says their hair needs to turn white early.
Reasonable diet to prevent white hair
The prevention of white hair should pay attention to the following aspects: pay attention to diet and nutrition. Staple food can often eat beautyberry rice, black beans, red beans, mung beans, Hong Ling, black sesame seeds, walnuts and so on. Vegetables often eat carrots, spinach, purple radish heads, purple cabbage, mushrooms, black fungus and so on. Animals often eat black-bone chicken, beef, sheep, pig liver, soft-shelled turtle, dark fleshy fish, sea cucumber and so on. Fruits often eat jujube, black dates, persimmons, mulberries, purple grapes and so on. In short, all dark-colored foods (green, red, yellow and purple) contain pigments formed by the interaction between natural plants and sunlight, which can supplement the human body's pigments and be beneficial to the health care of hair color. In addition, pay attention to ensure adequate protein and vitamins. Eat more vegetable oil, less animal fat and less sugar. You can use a small amount of honey or brown sugar instead. Severe white hair should be treated in time, keep a good mood, and don't be overly nervous and tired.