It is true that being able to perform well in a high pressure situation is a natural stress response that releases extra hormones.
I'm not too sure,but their has to be a warm up session, a training session, and a cool down.
The liver is a really complex organ that as a myriad of physiological functions. Among them the liver is responsible for breaking bulky molecules that can't be cleared out of the body. After breaking down the molecules are small enough to be carried out in urine or bile