Rumor: Cutting and shaving can make hair thicker and darker.
The Truth
For this rumor, there are really a few happy and some sad. People with less hair hope to increase their hair by cutting their hair often, and women who need to remove body hair worry that their body hair is getting thicker and darker. In fact, whether the hair is more or less, thick or thin, black or light, has nothing to do with whether you cut it or shave it, these are determined by genes and hormones [1]. The hair follicle, which directly affects the growth of hair, is hidden deep in the skin. It is only the surface shearing and will not affect the hair follicle, so it will not have any effect on the state of the hair [2].
If this rumor is true, there will be no people bothering about baldness. Men who shave every day will gradually become big beards, which is not the case. The number of hairs is determined by the number of follicles, and cutting hair does not change the number of follicles. In addition, long hair will appear softer, and it will appear harder after cutting it, which is because of human illusion. A similar example is also bamboo, which can be bent when it is long, but it is difficult to bend it when it is cut short. As for the thickness, the part of the hair tip will be thinner than the part that just grew out due to friction for a period of time. The problem with color is similar. Exposure to sunlight can lighten hair color, making new hair appear darker. But these differences have nothing to do with the haircut itself.
Conclusion
Rumors Debunked
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