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Chinese have been yellow ** since ancient times, black hair, human hair is black from birth, black is a sign of health. Hair represents the health of the blood or kidneys, and a person's health can be judged by the color of the hair. The hair of the human body has its own role in different parts, among which the longest hair in the human body is hair, and having a black and bright hair indicates that the body is relatively healthy.
So, why is most human hair black?
Hair is a reflection of a person's qi and blood, although hair also has a growth cycle, which will decline with age, when a person's qi and blood are not good, it will also be reflected in the hair. People with poor qi and blood will have dry hair, and the color will gradually fade and fall out. On the contrary, the better the qi and blood, the better the hair, the hair will be particularly good, the growth of hair is provided by human nutrition, when the person's nutrition is sufficient, the qi and blood are sufficient, and the hair will naturally become thick and black and bright.
Hair also hides the health of kidney qi, the more likely a person's hair is to color darker, indicating that the person's kidneys are particularly healthy, on the contrary, the more sparse the hair, the darker yellow and no color, indicating malnutrition or a manifestation of kidney qi deficiency.
Human hair is mostly black, and the reason for this mainly depends on the amount of black in the cortex and the air bubbles present within its cells. In addition, the hair color of the human body is related to the metal elements in the body, among which copper, iron, and melanin play a very big role in the color of the hair, the more these trace elements contained in the body, the darker the hair color will be, on the contrary, the less these trace elements contained in the body, the color of the hair will gradually become larger and whiter.
Human hair color is related to a variety of factors, such as genetic factors, physical factors, dietary factors, etc., which are all important factors related to hair color. Human hair color is a representative of a person's health, such as finding that the hair color gradually fades and whites, and the hair is dry and falling out, it means that it is caused by some diseases of the body, and it must be paid attention to.
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Because there is more melanin in the human body, through the continuous evolution of human beings, all the hair retained is mainly black, and green hair does not play a protective role.
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Because human hair is mainly heat-regulated, green is not very suitable for regulation, so there is no green hair.
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This is related to the melanin in the body, which is caused by the melanin in the body, so the hair is black.
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