The term hair comes from the Latin "villus" which means "lock of hair". Hair is understood to be short hair that shelters or covers some areas of the human body made up of hair fibers. In other words, hair is that hair or reduced, soft and fine villi, which is shorter than that of the head that covers various parts of a person's body. This, also called body hair, is made up of capillary fibers, as mentioned before, they are short and thin that generally measure less than 2 mm and also the follicles of these hairs do not have sebaceous glands, covering most of the body surface, except for the soles of the feet, the palms of the hands, and the genital mucosa.
The increase and growth of this hair is due to the level of androgens of each individual, which are male hormones. And this is why men have more hair than women since they have a higher level of androgens. From the childhood of the person onwards it begins to expand until it completely covers the human body, excluding certain areas such as the mucous membranes, the back of the ears, among others. But its greatest growth occurs during and after puberty, and it should be noted that it is clearly differentiated from the one that grows on the head and is less visible.
There are several types of hair such as: facial hair, also called beard, a physical characteristic that differentiates us between men and women; This grows the mustache area, temples, chin, and sometimes on the cheeks. Pectoral hair, which grows on the chest of men, in the region between the neck and the abdomen, develops during and after puberty. Armpit hair appears in the armpit area during late adolescence and growth is usually completed in late adulthood. Pubic hair grows in the genital area, the crotch, and sometimes on the upper thighs and develops at puberty. Abdominal hair It is one that grows in the abdomen and thorax or chest.
Otra acepción de la palabra vello es para designar a la pelusa que cubre la piel de algunas frutas o plantas que suelen darle una apariencia aterciopelada.
