Relaxation, meditation, biofeedback, self-hypnosis and yoga provide some very powerful ways of removing yourself from stress. Exercise is an excellent means of both reducing stress levels and better preparing yourself to cope with the effects of stress. Massage, hot showers, baths and saunas are also useful. Well-nourished bodies are better prepared to cope with the effects of stress. Avoid over-consumption of caffeine.
Some people prefer to remove all caffeine from the diet.
Get a proper amount of sleep. Try to be as physically comfortable as the situation will allow. Wear comfortable clothing. Be especially careful about tight waistbands. They make it harder to breathe in a relaxed way.