Want to cut your workout time in half without losing any calorie-blasting benefits? The secret is stairs! With the 15-minute Stair Workout, you’ll burn about the same amount of calories as you would in one 30-minute walk. You can do the Stair Workout anywhere you find steps―a park, a stadium or at home. Plus, the built-in strength moves target tough-to-tone areas in ways walking alone wouldn’t.