The Rise of the Supercharged Home Workout

... problems ballooned accordingly. By 2011, Americans were spending $1.2 billion a year on liposuction, $6 billion on yoga studios, $24 billion on gym memberships. They ran a collective two trillion steps on the treadmill. Yet even as the industry ...

http://www.theatlantic.com/health/archive/2013/05/insanity-the-rise-of-the-supercharged-home-workout/275907/