The most common cause of both male and female hair loss is androgenic alopecia. This condition is manifested by the thinning of the hair on the skull especially on the so-called «crown» part of the scalp.

Stress, along with fatigue, overwork and emotional shock, can also be a side effect of medical treatments, such as chemotherapy or taking certain medications.

Hair loss can also be caused by infectious diseases, thyroid problems or iron deficiency, especially in women with heavy menstrual periods. But it can also be genetic or caused by an excess of testosterone, naturally a little more present on the skin of some women.

In the young man, hair loss is mainly related to androgenic alopecia or the increase of Androstanolone, a derivative of testosterone, which accelerates the life cycle of the hair, reduces the size of hair follicles and produces new hair much thinner and finer.

In women, alopecia occurs reactively, the factors that disrupt hair growth are numerous: stress, childbirth, new eating habits, disease, etc. The signs are very visible and appear abruptly. There is hair in the shower, on the pillow, on the brush and even in the hands after styling.

In general, people suffering from this type of alopecia can use drugs such as finasteride (Propecia) or a Minoxidil lotion (Rogain) that can be applied directly to the scalp to improve their problem.