Androgenetic Alopecia: Why androgenetic alopecia occurs?
Androgenetic alopecia or genetic hair loss is the main cause of hair loss in men. It comes in several forms: inputs, small bald spot or total hair loss, one that leaves a crown of hair from temple to nape, and the absolute nakedness from the forehead to the top and the head. In its most manifest early on the 16, 17 but more often from the 25 and increases with age (40%, has alopecia at age 40).
Alopecia is caused by a hereditary genetic disposition determines the alteration of the hair bulbs in areas of the forehead, temples and crown (the top center of the head. Through a recipient of the bulbs (as a kind of switch that properly passes no electrical current) the male hormone testosterone into another hormone is modified: the dihitrotestosterona, which causes hair loss.
The cause of alopecia is due to the increased activity of an enzyme that produces a reaction called 5-alpha-reductase. At first, hair loss is not appreciated so obvious, but is associated with progressive reduction of hair regeneration. So, when it becomes visible, alopecia is at a fairly advanced level.
