Progressive Muscle Relaxation
While sitting or lying down in a relaxed position, tense the muscles of your feet as much as you can and then release the tension and pay attention to the sensation of relaxation in that muscle group. Tense and relax different muscle groups of your body one at a time. Focus on your legs, stomach, back, neck, arms, face and head.
Once you have finished tensing and relaxing all the regions of your body, allow yourself to remain in a state of relaxation for a few minutes.