Do you experience an increase in aches and pains at night? Repetitive strain and overuse injuries affect tendons, muscles, nerves and joints in the arms, hands, shoulders, neck, upper and lower back, and the legs and can range from being mild discomfort to excruciating pain. If your symptoms persist more than 3 months, or are not responding to physiotherapy or other conservative treatments, your problem may have become chronic and would benefit from regenerative treatments such as injections with platelet rich plasma, prolotherapy or stem cells. Dr. Comeau, BMSc, MC, CCFP, Horizon Medicine Centres, HorizonMedicine.ca