/kloc-the harm of hand y in 0/0 years

Masturbation, medically known as masturbation, is a normal physiological phenomenon, and it is common in human beings. However, long-term frequent masturbation is also harmful to the body, causing premature ejaculation, non-ejaculation, erectile dysfunction (impotence) and other diseases.

Due to the adequate and balanced nutrition in today's society, the maturity of male sexual development is greatly advanced. After normal sexual maturity, masturbation is caused by the desire for sexual needs and fantasies about sex. Masturbation is usually to solve one's sexual desire, vent sexual energy, meet one's sexual requirements, and get pleasure and comfort from it. According to statistics, more than 90% of boys and more than 75% of girls in the United States have masturbated. However, masturbation is not a natural way of sexual intercourse after all. After masturbating for a long time and getting used to a more relaxed way of ejaculation, premature ejaculation may occur during normal sexual intercourse due to the close contact and strong stimulation of sexual organs, which is the most common in hand-held masturbation devices. However, if you masturbate by stimulating the glans mucosa, because the nerves of the glans mucosa are sensitive, normal sexual intercourse can not provide strong stimulation to the glans, there will be no ejaculation and no pleasure of normal sexual intercourse.