The Centers for Disease Control (CDC) reports that in 2007 the percentage of adults that were considered obese (based on their BMI score) had grown to 26 percent, compared to about 15 percent in 1978. It is estimated that more than 17% of teens are obese, as well!
Given the increase in obesity, and the increasing amount of screen time teens are experiencing, San Mateo County in California has developed a Web site dedicated to engaging youth in the effort to combat obesity. You can see it at Get Healthy SMC. On the site parents, community members and youth will find links to facts, exercise and eating tips, as well as plenty of encouragement to get fit!
I found several very interesting resources, including a page for parents that includes several great resources including information for African American families, material in Spanish, and a five-page document about how to avoid using food rewards in classrooms.