“Regular physical activity benefits health in many ways, including helping build and maintain healthy bones, muscles, and joints; helping control weight and reduce fat; and preventing or delaying the development of high blood pressure (GAO, 2012). Exercise is one of the least expensive ways to stay healthy, with one study finding that exercise can prevent chronic diseases as effectively as medication (British Journal of Medicine, 2013). A comprehensive study and analysis of existing research found that leisure-time physical activity is associated with reduced risk of 13 different types of cancer, including breast, colon, liver and myeloid leukemia (National Institutes of Health, 2016).”
aspenprojectplay.org/youth-sports-facts/projects/benefits