That's a secret I learned quite recently. I knew it more precisely, but I didn't realize it and didn't use it. I learned the secret from sports! And I am writing this article right now, because on Sunday I clearly saw what happened to me and my body when I applied the secret the other way around. So, my tennis coach always said to me, "be relaxed", "do this exercise relaxed", "relax". When I first started, I did not understand why I need to relax, because I need to show the result! I need to break the record! I need to be faster! But the more I worked hard, the further from my record. After physical training, I came home as a squeezed lemon, tired, upset and could not do anything until the evening: the body refused to move, and the mind to think. Once we were running 20m. at speed. The first two times, I got tense as usual and showed a mediocre result. Coach told me: "Relax! I decided to follow his advice. And as soon as I did, I showed the result two tenths of a second faster! Hmm...