The Interval Training Workout: Build Muscle and Burn Fat with Anaerobic Exercise Format:Paperback A new edition of the

A new edition of the New York Times bestseller

These studies detail the changes that enabled humans to think and behave in far more sophisticated ways than before

For decades

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The Interval Training Workout: Build Muscle and Burn Fat with Anaerobic Exercise Format:Paperback A new edition of theInterval training is an effective, medically proven technique that has been used by elite athletes for decades to add a special dimension to their physical conditioning. The training has three key components: I. T. Workouts: brief repetitions of intense exercises alternating with intervals of rest XL Workouts: longer exercise sessions done once a week Active Rest Days: exercise sessions done at a comfortable, steady pace to help the body recover The