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Why do people grow fingernails and toenails? What does the nail do?
Bones need to be renewed, and the main function of nails is to protect nerve-rich fingertips from injury.

We say that the human body is a life. Biologists and more people believe that every part of the human body is a part of life, that is, every cell and gene is a life. Especially, life scientists describe genes as information, which is very appropriate. From the photon point of view, any photon information is constantly interacting with the environment to change itself, and in order not to let the environment change itself, it forms a photon information channel within itself. It is life 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 collection of more cells and more genetic life, and the human body transmits, integrates and utilizes these life 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, where the photon information energy density is relatively high, and it is here that a "bone" with relatively high material density can be formed. Traditional Chinese medicine research shows that meridians and acupoints are the joints between bones and a part of information channels. Stimulating this place with bamboo needles and silver needles can increase the transmission and utilization of corresponding information and treat corresponding diseases of human body.

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 sense about nails:

From the shape of nails: nails are flat, concave, spoon-shaped, brittle and dull, with signs 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 can be seen in anemia, hookworm disease, gastrointestinal bleeding, advanced tuberculosis, pulmonary heart disease and so on. As white as ground glass, it is a characteristic of cirrhosis; Nails turn white, thin and soft, which are more common in chronic wasting diseases. Yellow nails are lack of vitamin E, which is found in hypothyroidism, carrot disease, nephrotic syndrome and so on. Nails turn gray. It's onychomycosis. The nail surface is purple with small red thorns, which is caused by lack of oxygen, indicating that the heart and lungs are sick. Nails are half red and half white, indicating poor kidney function. White spots or flocculent white spots appear on nails, which may be zinc deficiency or gastrointestinal diseases or anemia; Black spots or green spots are signs of poisoning; Erythema appears around nails, which is more common in patients with lupus erythematosus and dermatitis. One and a half months is blue, but the peripheral circulation is poor; Obvious redness is a sign of heart failure; It is obvious for one and a half months, and the intestinal absorption is good; No or narrow, indigestion.

Nail is really a window to observe human health, so we should always pay attention to its changes, especially for long-term manicurists, who forget to take vacations every once in a while and let it show its true colors. If you find multiple nail variations, you should see a doctor in time.