According to the recently released Physical Activity Guidelines for Americans, 2nd edition (PAG)1 and as summarized in this issue of JAMA,2 it is estimated that in the United States, nearly $117 billion in annual health care costs and 10% of all premature mortality are associated with failure to meet the levels of recommended aerobic physical activity. Only 26% of men, 19% of women, and 20% of adolescents meet the PAG recommendations, despite the fact that these recommendations are readily achievable by most individuals in the United States.1,2