I don't entirely agree with the statement: "the more sex a man has, the dumber he becomes." It should be understood that the loss of semen is a significant energy expenditure for a man, which is why fatigue and sleepiness occur. Therefore, the issue isn't the act of sex itself, but the loss of semen. For example, in Eastern teachings like Tantra or Taoism, there are practical techniques for managing semen, where a man can actually experience blissful satisfaction without losing vital energy (semen).

Sexual energy – Kundalini Shakti – directly affects the mind, intellect, memory, and thinking. When semen is lost, this energy is depleted.

Tantric sex is an extremely dangerous practice. Firstly, there are many hidden pitfalls. Secondly, you need to master these techniques first (I don't think that Ekaterina and everyone else traveling to Yekaterinburg will have time for that :D). Thirdly, not only the "fork" but also the "outlet" must be proficient in this technique and be in a certain state of mind – a specific trance state. But the most interesting thing is that tantric sex shortens a person's lifespan much more and faster. I don't know the mechanisms, but it is far more dangerous than ordinary sex