Tension is one of the sources of pain and disease in human. The opposite of tension is relaxation, which is often the cure of pain and disease. Physical relaxation contributes to your longevity health. It is effective stress management.
The common signs of bodily tension are pain in the neck and back. If you are stressed out, your shoulders also get the tension. Expressions such as "shoulder your responsibility" and "on your shoulders" speak volumes of how your shoulders may sustain the stress from everyday life. Given that tension saps your physical and mental energy, always tell yourself to "drop your shoulders" for relaxation. But it is easier said than done.