Cardio Core 4x4

Change your life without changing your lifestyle with this revolutionary workout that provides the benefits of cardio and strength training in one anytime, anyplace 20-minute program.

We all want to be fit and healthy, but few of us have the time or inclination to log the countless hours in the gym it takes to sculpt a physique on par with the Hollywood elite. Enter Jay Cardiello's Cardio Core 4x4, which shows you that your body can be your gym.

Cardiello tailored this program for his tight-on-time celebrity clients, but you don't have to be a celebrity to get these kinds of results. Cardio Core 4x4 provides a program that requires only 20 minutes—which includes both the cardio and core workouts—and it's equipment-free, enabling readers to train whenever and wherever they can.