Problem: At least one chronic disease or condition affects 45% of persons and account for seven of the 10 leading causes of death in the United States. Persons who suffer from chronic diseases and conditions, (e.g., obesity, diabetes, and asthma) experience limitations in function, health, activity, and work, affecting the quality of their lives as well as the lives of their family. Preventable health-risk factors (e.g., insufficient physical activity, poor nutrition, and tobacco use and exposure) contribute substantially to the development and severity of certain chronic diseases and conditions.