Putting your tongue on the roof of your mouth is like turning on the master energy switch. This reconnects the main energy circuitry in the body. It rapidly destresses the body. It also counteracts the weakening effect of toes pointing out.
Driving in a snowstorm? Stuck at the airport waiting for the weather to clear? Having a stressful dinner with your family? Doing battle at the mall? Put your tongue up on the roof of your mouth. You will rapidly feel stronger and calmer.