Healthy Food Chart

For some, grade school will always be about playing hopscotch, dodgeball and four square (the actual game, not the app!), but you don't need to be a kid to work up a sweat on the playground. "There's a reason only 5 to 10 percent of the adult population works out consistently," says Brian Johnson, a clinical exercise physiologist and nutrition consultant who leads park workouts in Dallas. "Gym exercise is boring!"