A hair follicle is a tiny cup-shaped pit buried deep in the fat of the scalp. The follicle is the point from which the hair grows. It is well supplied with minute blood vessels, and the blood passing through them nourishes the growing region. The temperature around the follicle is normal body temperature, and is not affected by cold or hot weather.
The hair of an animal like a cat or a horse grows at different rates depending on the amount of natural light, which varies according to the time of year: it grows more quickly in winter when the days are short.Human hair probably behaves in the same way,growing a little faster in winter than in summer.The hair follicle can be divided into two regions.
The hair of an animal like a cat or a horse grows at different rates depending on the amount of natural light, which varies according to the time of year: it grows more quickly in winter when the days are short.Human hair probably behaves in the same way,growing a little faster in winter than in summer.The hair follicle can be divided into two regions.