semi-ect head of the department of sleep medicine at the clinic for nervous diseases of professor kozhevnikovorning. michael in the morning. well, we are already talking about this, probably they said, so to speak, in general it is always. as a matter of fact, this is one of the important clinical topics from my point of view. at school you are a somnologist and deal with sleep and insomnia. after all , there is, but i’m also not even afraid of this word, some correlations between a certain, let’s say, a certain course of some nosologies defined there, i don’t know hypertension. naturally, metabolic syndrome. there's something else and he doubts insomnia. so, in fact, cardiologists and neurologists are talking about this. in general, it is generally some kind of connection between insomnia and the course of a particular disease. in fact , somehow at the everyday level, we understand that not sleeping or sleeping badly is harmful. yes, and here is how proven it is in real scientific research, when i began to deal with this issue. i've found that there really isn't much that's been proven about