This document discusses the importance of physical activity and the dangers of sedentary behavior, especially for children. It notes that sedentarianism is a risk factor for many health issues and is one of the worst risk factors. It provides evidence that physical activity can lower risks of early death, cardiovascular disease, diabetes, and some cancers. The document discusses strategies for getting children more active, including making it fun, scheduling activity, serving as a role model, and creating a supportive environment. It promotes the Physical Activity Evangelist's 7 rules and provides various resources for physical activity.