hmmm if It really burns 100 calories.do this 5 times a day and burn 500 calories. There are 5 commercial breaks in a 1 hour tv episode. Burn 500 calories while watching your favorite show. Now, that sounds like a plan!
Prevention's 6 Week Walking Workout - Walk off 2 sizes in 6 weeks! Rev up your walking routine with this fun, boot camp-style workout from Chris Freytag, and lose up to 22 pounds and 4 inches off your belly in 6 weeks.