You are using an older browser version. Please use a supported version for the best MSN experience.

Blood Sweat Profit: The billions behind America's fitness obsession

Your sweat if fueling the $32 billion fitness industry. From gyms, to studio classes, to digital workouts, CNNMoney's Vanessa Yurkevich gives you an all-access look inside the industry that's defining your workout.

Latest

Sport

Editor's Picks

World

Featured Partners

image beaconimage beaconimage beacon