However, although most men regard baldness as an unwanted and distressing experience, they usually are able to cope and retain integrity of personality.Although baldness is not as common in women as in men, the psychological effects of hair loss tend to be much greater. Typically, the frontal hairline is preserved, but the density of hair is decreased on all areas of the scalp. Previously, it was believed to be caused by testosterone just as in male baldness, but most women who lose hair have normal testosterone levels. Epidemiology
Female androgenic alopecia has become a growing problem that, according to the American Academy of Dermatology, affects around 30 million women in the United States. Although hair loss in females normally occurs after the age of 50 or even later when it does not follow events like pregnancy, chronic illness, crash diets, and stress among others, it is now occurring at earlier ages with reported cases in women as young as 15 or 16.For male androgenic alopecia, by the age of 50 30-50% of men have it, hereditarily there is an 80% predisposition. Notably, the link between androgenetic alopecia and metabolic syndrome is strongest in non-obese men. Society and culture
Studies have been inconsistent across cultures regarding how balding men rate on the attraction scale. While a 2001 South Korean study showed that most people rated balding men as less attractive, a 2002 survey of Welsh women found that they rated bald and gray-haired men quite desirable.
In more severe cases, in-vitro fertilization with intracytoplasmic sperm injection may be used. Intentional induction
Retrograde ejaculation can be deliberately induced by squeezing the urethra at the base or applying pressure to the perineum during orgasm. The retrograde-ejaculated sperm goes into the bladder and is excreted with the next urination. Contraception
In certain cultures, such as in the Oneida Community, retrograde ejaculation is performed as a form of primitive male birth control (coitus saxonicus). However, the practice is not considered a reliable method compared to most modern types of birth control. Besides the  lack of protection from STDs, the technique itself can be hard to execute correctly during the act of coitus, especially if the male does not fully understand the anatomy involved. Many doctors also do not recommend coitus saxonicus due to the risk of putting pressure on the pudendal nerve, which can cause numbness in the penis. Taoism
Taoists and some fields of alternative medicine recommend and teach deliberate retrograde ejaculation as a way of "conserving the bodys energy". It was believed that retrograde ejaculation caused the sperm to travel into the head and nourish the brain, or that energy is conserved physically by keeping the sperm (and thereby, the "intelligence" that created it) in the body. However, there are other Taoist perspectives on the general subject of ejaculation and techniques that do not involve retrograde ejaculation (see Taoist sexual practices). See also
Aspermia
Ejaculatory duct obstruction
Hypospermia
Internal urethral sphincter
Spermaturia

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