According to American researchers, ideal sex lasts 10 minutes

This relatively short period of time is enough to satisfy both partners. And longer "sessions" will bring nothing but fatigue. This is reported by NEWSru.com with reference to the Daily Mail.

These are the conclusions reached by psychologists at the University of Pennsylvania. They conducted polls as well as their own research. It turned out that for most people, seven minutes of sex is more than enough. Making love for 7 to 13 minutes was called “desirable” by many. However, anything that went beyond 13 minutes was rated “too long”.

At the same time, according to scientists, sex as a medical procedure begins to be beneficial only after half an hour. It turns out that the body is synthesizing free radicals, which are "invaders" of oxygen molecules. If there is an excess of radicals, then this can be a source of disease. Sex neutralizes them, but only starting from the 31st minute.

Doctors advise those with pyelonephritis to make love for at least 40 minutes. If you suffer from an ulcer, then this time should be an hour. Those with gastritis are advised to have sex for 1 hour 10 minutes, and for angina - 1 hour 20 minutes.