Question 1: What are the benefits of fingernails? Let me tell you something. Changes in the five internal organs of the human body will also be reflected on the nails accordingly. As long as we pay attention to the subtle changes of nails, we can predict a person's health. If you look at health from nails, the key lies in the color and shape of nails. Healthy nails should be smooth and flat, with no vertical and horizontal grooves on the nail surface, no interference spots on the nail, symmetrical nails, no deviation, no depression or upturned ends. As far as normal nails are concerned, although there are many kinds, there are not exactly the same nails. Generally speaking, healthy nails can be divided into: ordinary nails, big nails, small nails, long nails, short nails, wide nails, narrow nails and so on. Usually, nails account for 3/5 of the fingers, arched in a rectangular shape, and the transverse diameter at the top is slightly larger than that at the base. The white half-moon part of the nail root is called nail half-moon, which is also commonly known as nail white in folk, just located in the center of each finger, and there is no big deviation. Speaking of it, when all fingernails have proper nail whitening, it can be inferred that human health is in good condition. If 10 fingernails are not or only a little white, it means that the body is exhausted or sick. The ideal nail polish should account for about 1/5 of the nail area. Too much or no nail polish doesn't mean you are strong. The growth and shape of nails will be affected by physical changes at any time. Especially from the color of nails, whether there is normal white nails, we can see whether I am healthy or sick. In addition, some clues can be seen from the following 10 different pathological nails. We should pay attention to this, adopt correct treatment methods and try to correct it as soon as possible. First, nail brittle crack must first find out its reasons: First, nails have been in contact with water for too long; Second, protein and calcium, sulfur, zinc and other elements or vitamins A, B and C in the diet are insufficient; Third, chronic diseases or emotional stress; Fourth, oral contraceptives; Fifth, polish nails or use abrasives. May wish to adopt the following correction methods respectively. 1. Take two tablespoons of yeast and 1000 mg of choline orally every day. It is best to add these nutrients to liquid or milk for oral administration, which will help improve the strength of nails. 2. In view of the fact that iron deficiency can lead to dry and fragile nails, it is best to eat more iron-rich foods and take vitamin C to improve the ability to absorb iron. 3. Soak and polish the flawless nails with warm malt oil or other natural oil for about 5- 10 minutes every day, and then * * * from the fingertips to the cuticle on the surface. If the nail surface is slightly scratched by the sand board, grease can easily penetrate into it. Soak your fingers with vinegar diluent every night, which is a good way to prevent nails from cracking easily. Using white iodine above and below the nail tip can not only restore the elasticity and strength of the nail, but also hinder the nail from being cut off. Second, nails become fish and colorful. People with chronic diseases, long-term depression, smoking or finger contact with carbon paper, hair dye and other chemical pollutants can discolor or stain their nails. If the nails are deeply dyed, it's best to wait until the new nails grow. If you want to remove surface stains in time, you can rub your fingertips repeatedly with a piece of lemon, and then wash and dry. Third, the nails are grotesque. If you lack protein or iron for a long time, it is usually easy to cause spoon-shaped or flat nails, which can be corrected by improving diet and nutrition. It is said that wearing artificial nails can soften the water stored in nails and cause them to bend upwards. Therefore, it is necessary to appropriately increase nutrition and remove the artificial nails worn. Fourth, the nails are dull. If the nails are wavy and dull, it may indicate a lack of protein, vitamins A and B or minerals. This can improve the daily diet and supplement multivitamins every day. Add vitamin B6 and zinc 15g. The black and white nails indicate that you may have liver disease. At this time, you can ask a doctor to check and help you make a diagnosis. 5. Pale nails This may be a sign of lack of zinc and vitamin B6, or it may be caused by anemia. After improving diet and nutrition, the symptoms of pale nails still exist, so you should consult a doctor to find out the reason. Six, the dent on the nail. The symptoms of this disease show that the body lacks calcium, protein and sulfur. These nutrients can be obtained from eggs and garlic, and it is better to eat them often. Seven, ridge, ditch, ditch nails If you wear artificial nails or do not pay attention to the cuticle of the appearance, it may cause problems with ridges, bad nails and ditch nails. These abnormal signs may be caused by diseases and nutritional deficiencies, so symptomatic treatment is appropriate. ......& gt& gt

Question 2: What is the function of nails? The main function of nails is to protect nerve-rich fingertips from injury. Protein, keratin and sulfur are the main components of nails, and the length of nails is about 0.05~ 1.2 mm per week. The abnormal changes of nails are related to the lack of various nutrients. Simple nails: lack of vitamin A and calcium. Treatment: Strengthen nails with special nail moisturizing oil. Groove marks: lack of vitamin B treatment: groove marks can be repaired with nourishing oil. Nails turn black and the ends are arc-shaped: lack of vitamin b 12. Long thorn: lack of protein, folic acid and vitamin C. Treatment: Cut off the meat thorn with soft leather scissors. And apply soft leather maintenance oil. White stripes: lack of protein. Penicillium: There are not enough benign bacteria (lactic acid bacteria) in the body.

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People with short nails have weak hearts and are prone to infection from the abdomen to diseases in the waist and lower body. If these nail tips are flat and embedded in meat, diseases such as neuralgia and rheumatism may easily occur.

People with narrow nails, ridges and other bones are prone to get sick, especially those with very soft nails, and calcium is always very scarce.

People with crustaceans should pay more attention to minor problems in the spinal cord and nervous system.

Too many white spots on nails are symptoms of neurasthenia, and yellow spots indicate digestive system diseases. Small particles on nails are drug poisoning or parasites in the body.

If the half-moon shape at the lower end of the nail is large, it means that the blood circulation is fast. If it is small, it means that the blood circulation is not good. Extreme anemia, half a month will disappear completely.

There is a straight line on the nail, which is proof of overwork and overuse of the brain.

The horizontal line on the nail is a dangerous pathological beginning. The horizontal line is only exposed at the bottom of the nail and gradually moves up with the growth of the nail. People who are good at this can infer the possible period of the disease from the position of the horizontal line.

1, healthy people's nails are pink. Put ten nails in the sun to observe, and move your fingers up and down. If there is shiny reflection on the nail surface, it means that the overall health is in an excellent state and the functions of various organs in the body are intact and normal.

2. Brown longitudinal stripes or cracks appear on the nail surface, extending from the fingertip to the root of the nail, suggesting intestinal inflammatory lesions or suggesting vitamin deficiency and iron deficiency. Partial whitening of nails indicates zinc deficiency. Ordinary whitish indicates anemia. Brown stripes appear on nails, which is a signal of liver disease. But it is worth noting that this tan stripe should appear on ten fingernails at the same time, which is liver disease; Isolated appearance cannot be used as a basis for diagnosis.

3, if there are many thimble-like pits on the nails, most of them are the late symptoms of psoriasis.

4, finger swelling, purple halo on the nails, probably lung disease. Thin, brittle or even cracked nails indicate that there are diseases in the respiratory and circulatory system.

5, the nail is invaginated in the middle, spoon-shaped, indicating that you have diabetes, anemia, hyperthyroidism or malnutrition.

6. Dark red and purple blood spots under your nails often indicate that you have epilepsy and blood diseases.

Question 3: What is the material of human nails? These structures seem to explain the principle of point nail formation: the nail body (nail cover) is generally called nail, which is composed of 3-4 layers of hard scaly cuticle overlapping, and does not contain capillaries and nerves. The nail cover is located between the nail root and the nail front edge and attached to the nail bed through keratin fibers; It is the skin tissue that supports the nail body that is closely connected with the nail body and provides water for the nail body. The nail bed contains a lot of capillaries, and the color of pink nail bed has a great relationship with people's health. Nail root; Located at the root of nails, the front of methyl group is very thin and soft, and its function is similar to the rhizome of crops. The root of the nail constantly pushes the newly produced nail keratin cells to grow forward and promotes the metabolism of the nail. Methyl (i.e. methyl); Located at the root of nails, it contains capillaries, lymphatic vessels and nerves, and its function is similar to that of soil. Methyl absorbs nutrients from the human body and produces keratin cells that make up nails, so methyl is the basis of nail growth. Both nails and hair are accessories of the skin, but nails are different from hair, and the growth of hair is periodic and stops for a long time; The growth of nails is continuous, so nails can't be cut off, and so can toenails. Like hair, nails are made of hard keratin and evolved from epidermal cells. Epidermal cells are constantly metabolized layer by layer from birth to death, and constantly produce new keratin, so nails continue to grow. Although nails keep growing, the growth rate is not even. They are influenced by age and health. Due to seasonal changes and mechanical influences, the fingernails of newborn babies grow slowly, and then gradually grow faster, especially among young people. After forty years old, the growth rate gradually slows down, and it is even slower in old age. Good nutrition, strong body, strong ability of N epidermal cells to synthesize keratin, so fingernails grow faster. Sick people, whether natural or local diseases, such as arms, will also affect the growth of nails. Frequent rubbing can also lead to the growth of nails. If you bite your nails often, your nails can grow faster. People who work with their hands and nails, such as hairdressers, also grow faster. The metabolism of various organs of the body is faster in summer and autumn, and the growth of nails is faster at this time. On the contrary, it is slower in winter. Nail is a specialized hard cutin group, which is formed by nail matrix located at the root of nail. In fact, nails are dead cell tissues, and most of their appearances are determined at the same time. Therefore, only a healthy nail matrix can have beautiful nails, and the maintenance of nails must include the maintenance of the skin around the nails in addition to protecting the nails themselves.

Question 4: Why do people grow nails? What role can nails play? Why do people grow nails? The simple answer is: human beings grow nails in order to survive in evolution. That's because human beings have adapted to the evolution format of a living environment in evolution. At first, nails evolved to facilitate climbing, fighting (survival competition) and assisting the mouth to eat. Later, with the continuous evolution of human beings, our nails are not as hard and sharp as before. Now nails mainly protect fingers. Ps: As time goes on, our nails will continue to deteriorate, because when we no longer need to use it, it will lose its original function and gradually deteriorate. Just as animals and primitive humans have a lot of body hair, we don't have a lot of body hair, because we no longer need body hair to help us keep warm. If you don't have toenails, you will feel unstable. It plays a role in supporting and stabilizing the upper body together with the toes, forefoot and heel. Without toenails, it is difficult to walk, run and climb mountains because there is no stability and grip. If there is no toenail, there is no muscle in the toe, and it can't play its due role. Also, when working, nails are a protective film, which can prevent fingertips from being easily injured. It is also suggested that 90 or more of the following human organs are redundant.

Question 5: What are the functions of hair and nails? We say that the human body is a life. Biologists and more people believe that all parts of the human body are part of life, that is, a cell and a gene are all a life. Especially life scientists say that genes are information, which is very appropriate. From the photon point of view, any photon information is constantly interacting with the environment to change itself, so as not to let the environment change itself. It is life to form a photon information channel within itself to transmit photon information and achieve the purpose of unified movement arrangement. Therefore, any photon information, a cell, a gene, an atom, is a life, they are just different life forms. As a big life, the human body is just a mixture of more cells and more genes. The human body transmits, integrates and utilizes these vital information. To put it further, it is a bit like a living organism, and more organisms form a large group. Human society is also alive, and it is also the transmission and utilization of information, which means that human society can be regarded as a living organism. All living things on the earth are alive. Together with the earth, these life forms the earth's huge life system. The earth is alive, and it is also the transmission and utilization of all kinds of information. Let's understand and care for the earth. Don't think that the earth is an inanimate object and can be exploited and utilized at will. We should regard them as living organisms. The human body can use the earth and change it, but we can't overdo it. We have to get back to the point, otherwise this article will be a bit off topic. The human body organically combines thousands of lives, so that these lives can live in a balanced way in the human body. The human body transmits these photon information in the human body, forming an organic life. In order to prevent the photon information in the environment from changing itself easily, a photon information channel will be formed inside the human body, so that the photon information absorbed by the human body can be transmitted to other parts in the shortest time, so that the photon information in other parts can be changed and corresponding countermeasures can be made. This is the unified form of life. If we want to form a photon information channel inside the human body and form the meridian system called by the ancients in China, then the photon information distribution inside the human body is not uniform, but the photon information energy density is relatively high in some places, and the photon information channel is relatively small in some places, so it is easy to accumulate more substances. Among them, the location of animal bones is the distribution of human meridian system, which is a place with high photon information energy density. In this place, a "skeleton" with relatively high material density can be formed. Medical research in China shows that meridians and acupoints are the joints between bones and a part of information channels. With bamboo needles and silver needles, the transmission and utilization of corresponding information can be increased, and corresponding diseases of human body can be treated. Similarly, the human body as a whole system also has its own independent photon information. When the human body exists, its own photon information is not completely absorbed by itself, but radiated into space, especially the head and limbs, which is the main place for human photon information to radiate into space. That is to say, the limbs and the head radiate their own photon information into space. First, the energy density of photon information in this area is relatively high, and second, it represents the flow direction of photon information, so hair grows on the head. Moreover, hair usually grows in other parts of the human body, especially where the photon information energy density is relatively high, which is also an important acupoint. From a medical point of view, nails are also a barometer of health. Nails are a barometer of human health. Normal nails are ruddy, tough, arc-shaped, smooth and shiny, and their roots are gray. If the color of the nail shape changes, it means that the human body may have some kind of disease. Here are some common knowledge of nails: from the shape of nails, nails are flat, concave, spoon-shaped, brittle and dull, and symptoms of liver water deficiency or iron deficiency anemia, hypochromic anemia and light-colored small cell anemia. Nails are parrot-shaped, and fingertips are like drumsticks, which are more common in congenital heart disease with cyanosis, rheumatic heart disease, chronic heart failure and lung abscess, emphysema, silicosis, chronic fibrocavitary tuberculosis, chronic ulcerative colitis and other diseases. The appearance of horizontal stripes on nails is a precursor to nephropathy or myocardial infarction; The appearance of longitudinal stripes is a harbinger of liver disease; The appearance of pit lines is poor respiratory function. From the color of nails: nails turn white, and hemorrhagic shock is an emergency; Chronic diseases are anemia, hookworm disease, gastrointestinal bleeding, advanced tuberculosis and pulmonary heart disease. & gt

Question 6: What is the effect of nail medicine? Chen Yuxiang, director of the Biological Laboratory of Central South University and a professor at Xiangya Hospital, said that as early as the Tang Dynasty, the use of nails as medicine was recorded, with a history of 1000 years. Traditional Chinese medicine calls nails "tendon withdrawal", which is considered to have the effects of clearing away heat and toxic materials, eliminating putrefaction and promoting granulation.