Massage is one of the most relaxing, therapeutic and decadent ways to spend an hour, whether it's your significant other rubbing your shoulders at the end of a long day or a trained massage therapist digging a thumb into a knotted hamstring muscle. And if you needed another excuse to get a massage, American Massage Therapy Association (AMTA) spokesperson Mary Beth Packard says "massage calms the nervous system, replenishes lost nutrients, facilitates blood flow in tight muscles (which helps soften and relax them) and improves range of motion." Physicians prescribe massage to manage…