Progressive Muscle Relaxation
By tensing and relaxing all the muscle groups in your body, you can relieve tension and feel much more relaxed in minutes, with no special training or equipment. Start by tensing all the muscles in your face, holding a tight grimace ten seconds, then completely relaxing for ten seconds. Repeat this with your neck, followed by your shoulders, etc. You can do this anywhere, and as you practice, you will find you can relax more quickly and easily, reducing tension as quickly as it starts!