Rapid ejaculation is one of the most frequent sexual disorders: it occurs in almost 30% of men.
There are primary and secondary premature ejaculation. Primary (or original) form is characteristic of young men. Most often, it is associated with high sensitivity of the glans of the penis. The secondary (acquired) form occurs over time and is caused, as a rule, by chronic prostatitis, erectile dysfunction, increased thyroid function (hyperthyroidism).
Erectile dysfunction (impotence) - lack of erection, which is described as the decreased firmness of penis and got the negative influence on man’s sex life. The prevalence of this disease is high. Recent studies revealed that almost half of men after age 40 are facing impotence.