What are the terminal hair?

terminal hair is hair that evolves during puberty in boys and girls. Hair develops from vellus hair, thin hair that covers most of the baby's body. During puberty, the vellus hair surrounds the genitals and replaced under the arms with stronger end hair. As these hair evolve by release of androgen hormones, men will develop more over their bodies. Unlike head head hair, terminal hair is regularly replaced by the growth of new follicles. As soon as these hairs are short and translucent. Vallus hair has no subcutaneous glands, which means that small children rarely experience skin conditions such as acne. For young boys, hair hair on the cheeks is colloqually known as "peach fluff". During puberty, Velus hair is subject to transformation.

During puberty, the bodies of boys and girls release androgen hormones into the bloodstream. In boys, this hormoneestosterone is. For girls, the body converts androgen hormones into estrogen. Androgen hormonesThey have a direct effect on the Enge hair in certain areas of the body. Each hair develops subcutaneous glands; The glands allow oil secretion to lubricate hair. Hair darkens, grows longer and becomes much stronger. The distribution of these hair over the body depends on the sex of man.

In men and women, the end hair grows under the arms and around the genitalia. Because androgenic hormones are present at much higher levels in men, terminal hair also develops in many other areas: chest, abdomen, back, legs, arms and inner thighs. After puberty, the female retain a large part of their trains vellus, although hormonal imbalances, such as those that occur during pregnancy, can cause temporary terminal hair growth on certain parts of the body. After hormone levels, it returns to normal, Vellus Hair generally rebuilding.

Despite the similarity of the hair hair, the body regularly shed the hair of the terminal and replacesHe is new follicles. The average life per one of these hairs is three to six months, referring mainly to armpits and genital hair. This feature is why, for example, hair under an adult man's arms never seems to grow around a certain length. Hair throws at different times and guarantees that the purpose of hair that helps insulate the body and more efficiently to distract heat is never endangered. Although the male experiences the baldness of the male pattern in early or medium maturity, its terminal hair will remain in the late adulthood.