Morbidity and Mortality Weekly ReportMMWR. 2012;45:927.Diabetes, of which 90%???95% of all cases are type 2, is becoming more common in the United States, driven in part by the increasing prevalence of risk factors for type 2 diabetes, such as obesity and physical inactivity.1 However, among adults at risk, lifestyle changes such as losing weight and increasing physical activity can prevent or del