You're giving sedentary lifestyles way too much credit. If you want teenagers with the fitness levels of elderly smokers, you've already got it happening out th

You're giving sedentary lifestyles way too much credit. If you want teenagers with the fitness levels of elderly smokers, you've already got it happening out there. Quit driving to work, and start biking to work, and you'll see results. It really has to be about lifestyle, and spending too much time on one's behind, combined with eating badly, is slowly killing millions.