The document discusses how what we see and do can directly affect our health, as inactivity such as excessive TV watching can contribute to weight gain and obesity in children, while being physically active and modeling good behaviors for children can help promote healthier habits. It also notes that media influences like food advertising can impact snacking habits in kids, and that a lack of physical activity is linked to higher risks of health issues beyond just weight, such as high blood pressure and diabetes. The document encourages replacing sedentary behaviors with physical activity both inside and outside.