The blackness in oriental hair is inseparable from melanin, which is a common dark brown pigment in skin and hair. Because of it, our skin and hair have color. Melanin is actually a kind of protein. 20-25 years old is the active period of melanin precipitation. People of this age should not have white hair. If they turn white at a young age, it is likely that the intake of protein in the diet is insufficient for a long time, which leads to insufficient melanin synthesis.
copper deficiency
Although the stock of copper in our body is very small, we can't lack it. Without copper, more than 30 enzymes in the body will lose their activity, and the normal functions of bones, skin and hair will also be affected. Through the determination of trace elements in hair, it is found that copper in dark hair is obviously more than that in light hair, for example, copper in black hair is higher than that in yellow hair, and copper in yellow hair is higher than that in white hair; The copper element in women's hair is higher than that in men's, so the lack of copper is also one of the important reasons for the early gray hair of young and middle-aged people.
Take too much salt
Everyone is familiar with White-haired Girl. The protagonist Xi also has long snow-white hair. The movie said that her hair turned white because she didn't eat salt for a long time. Can lack of salt lead to white hair?
Studies have found that people who eat too much salt will cause insufficient blood supply to the head, which will lead to a decline in the ability to synthesize melanin. The synthesis of melanocytes is unsuccessful and it is easy to produce white hair. Therefore, the reason why the white-haired girl's hair turns white is definitely not caused by lack of salt, but by various kinds of destruction and torture she suffered in Yang Bailao, as well as excessive mental stress and other comprehensive factors.
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