Why the hairs are black.What is region behind it?
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Hair color is the pigmentation of hair follicles due to two types of melanin: eumelanin and pheomelanin. Generally, if more eumelanin is present, the color of the hair is darker; if less eumelanin is present, the hair is lighter. The darker a person's natural hair color is, the more individual hair follicles they have on their scalp. Levels of melanin can vary over time causing a person's hair color to change, and it is possible to have hair follicles of more than one color on the same person. Particular hair colors are associated with ethnic groups. Gray or white hair is associated with age.
Answered by
1
Hair color is the pigmentation of hair follicles due to two types of melanin: eumelanin and pheomelanin.
Generally, if more eumelanin is present, the color of the hair is
darker; if less eumelanin is present, the hair is lighter. The darker a
person's natural hair color is, the more individual hair follicles they
have on their scalp. Levels of melanin can vary over time causing a
person's hair color to change, and it is possible to have hair follicles
of more than one color on the same person. Particular hair colors are
associated with ethnic groups. Gray or white hair is associated with
age.
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