For example, the more crescent-shaped nails, the healthier the nails, the vertical stripes on the nails are a symbol of disease, and zinc and calcium deficiency as long as there are white spots. Do these seemingly various health knowledge really have scientific basis? 1, the number of nail crescent has nothing to do with health. Nail growth is a process from the inside out. The new moon we see is actually keratin cells piled up at methyl sites. After death, these cells change from white to transparent.
The reason why some people don't have crescent moons on their fingers, or the number of crescent moons is too small, is entirely because of different genes. Some people have a small crescent when their methyl parts are covered with skin, but this is not a genetic defect, only a normal physiological manifestation; In addition, the speed of cell proliferation also affects the state of the new moon. People with faster cell proliferation can see the big crescent because keratin is ejected before death. People with slow cell proliferation will die of keratin in their new nails, and naturally they will not see the crescent moon!
2, there are vertical lines on the nails, is it liver disease? Not necessarily! According to clinical statistics, 9 out of every 10 people will have white transparent vertical stripes on their nails, which does not indicate their physique. In fact, not many people's nails are completely smooth and flat. With the increase of age, the water-locking ability of nails will gradually decline, and vertical stripes will become more and more obvious. But sometimes vertical stripes appear on nails, which may also be a sign of vitamin deficiency. Especially for people who are picky about food and don't like vegetables and fruits, it is very easy to lack vitamins in the body, and nails also need vitamin support in the process of metabolism. When vitamin A is seriously deficient, it is easy to cause nail malnutrition, vertical lines and depressions.
In addition, nails have black vertical stripes and uneven symptoms, and multiple nails have similar manifestations, which may indeed be a signal of liver injury. Because the liver is the detoxification organ in the body, when toxins cannot be metabolized, they will accumulate in the body, thus affecting the state of nails. But not all patients with liver disease will have similar symptoms, and the simple vertical nail stripe can not judge whether the body has diseases. 3, nails have white spots, that is, lack of trace elements? If only the nail bed has white spots, it is often related to trauma. After the nail bed is damaged, it is easy to leave traces. With the continuous growth of new nails, white spots will move upward and eventually be mercilessly cut off.
Therefore, after the appearance of nail white spots, the first thing to consider is whether the nails have been traumatized recently! If you haven't been injured, and multiple nails have similar performance, and you are picky about food and your stomach function is not good, it may be a sign of malnutrition. But generally speaking, there is no scientific basis for judging the hidden diseases in the body through the tiny manifestations of nails. What really needs everyone's vigilance is the inexplicable blackening and thickening of nails, nail shedding, spoon-shaped fingers and so on. It may be a signal from the disease.