The life cycle begins in the hair bulb papilla after germination produces layers of keratin cells that determine the hairline. It grows between an inch and half an inch per month, its life cycle varies from 3 to 5 years, at the end of which the hair is completely blocks and produces a new papilla germination whence another new hair.
The hair loss problems are very common in both men and women, it can be given by internal or external factors depending on each person. There are many types of alopecia: Areata (produced by nervous system factors and to a lesser extent, viral processes), Diffuses (incipient menopause, post-partum, post-traumatic states, thyroid problems, etc..), Androgenetic (due to genetic factors - heredity or hormonal dysfunction). Also frequent seasonal hair loss, which in the spring and fall undergoes a process of molting, this hair loss is normal, but, if unchecked, can lead to capillary dysfunction develops a major problem.
Hair and Trichology Treatments by Simone