Relaxation techniques are exercises done that reverse the physical stress response. The belly softens, the breathing deepens, muscles ease, digestion improves, the heart slows and blood pressure lowers. Pain can be decreased or the duration of a severe pain flare-up can be lessened. It is important to note that tranquilizing medications and sleeping pills should only be used temporarily, under medical supervision. Relaxation techniques involve concentration or mindfulness and differ from daydreaming and watching TV. There have been 2,500 research studies suggesting the effectiveness of mind/body self-regulatory skills.