Why more and more white hair -- hair follicle problem?

summary

It has been said that the more white hair is pulled out, many people dare not pull out even if they have a few white hair. Is that really the case? It depends on the secretion of melanin in the body to decide whether the hair is black or white. It has nothing to do with pulling out the hair.

Why more and more white hair -- hair follicle problem?

First: our hair grows out of hair follicles, with an average length of 2-4 hairs per hair follicle. The color of hair is determined by the melanin secreted by hair mother cells in hair follicles. The number of melanin particles is large, the density is large, the hair is black, otherwise the color is light.

Second: there are many reasons that affect the secretion of melanin. For example, after 40 years old, the melanin produced by melanocytes will gradually decrease. Genetic factors, malnutrition, high mental pressure, insufficient sleep and poor digestive function will also affect the secretion of melanin, leading to the appearance of white hair.

Third: the reason why most elderly people think that the more they pull out their white hair, is due to the decrease of melanin in the body. After pulling out a piece of white hair, the hair that grows out of this hair follicle is still white, while the hair that grows out of other hair follicles will also appear white. This makes it appear that there are more white hair and the illusion that the more white hair is pulled out .

matters needing attention

Although hair removal does not affect the number of white hair, experts still do not recommend random hair removal, because hair removal may damage the root.