>>16776254>I've waited for hours in this positionYou're only supposed to do it for 5 minutes max. It's just to release cortisol that gets stored in your limbic system. All that shit about "releasing toxins" is sort of true; modern men have a tendency to keep their muscles tense as a display of dominance, but it doesn't allow for the natural process of cleansing your metabolism of 'stress' response chemical remnants.
Tremble exercises require total relaxation to function, you're probably relaxing your muscles but mentally remaining stressed. It's not a miracle cure, but it does help relieve physical symptoms of stress to allow for higher performance.