A large review of studies has shown that exercise can relieve depression as effectively as psychological therapy. Compared to antidepressants, exercise had similar benefits, but the evidence was less certain. Light to moderate physical activity repeated in several sessions brought the best results. Researchers have noted few side effects from exercise. The findings suggest that exercise is an effective tool for reducing symptoms of depression. At the same time, the authors state that it is not a universal medicine, but it is an available form of help for many people.