Facts About Hair Humans, in average are covered with hair all over their bodies, with the exception of the palms of the hands, soles of the feet and the lips. Hair is noticeably more obvious on the scalp and face while including the nose and ears in certain cases, the armpits, the groin and the chest and legs.
A healthy cuticle is more than just a protective layer. Much of the shine that makes healthy hair so attractive is due to the cuticle. Intact cuticle cells are smooth and glossy, and reflect light from their surfaces. This, together with the pigment within the cortex, gives hair its chara
cteristic appearance.
Hair Follicle The hair follicle is the physical point from which the hair starts to grow and is a tiny cup-shaped pit buried deep in the fat of the scalp. The hair follicle is well equipped with blood vessels, and the circulation of blood through them causes the nourishment of the growing region the surrounding temperature of the hair follicle is approximately the same as normal body temperature and it remains unaffected by hot or cold water.
Hair growth of animals for instance grows at varying rates depending on the amount of exposure to narutal light, which accordingly changes depending on the time of the year; it grows faster in the winter when the days are short. It is assumed that the behavior of human hair in very similar, growing a little faster in the winter. The hair follicles consists of two divided regions; the hair bulb and the hair shaft.