I did strong yoga almost daily for 20 years, and still there were results—like fat-burning, strength increases and cardio optimization—that I wasn't getting enough of from that practice. Adding in the scientifically-proven fitness turboboost of High Intensity Interval Training (HIIT) workouts, you'll get super short, hard but fun, intensive bursts of exercise that will cross-train your yoga lifestyle and make it Shred! Include this brilliant counterpart in your weekly routine, and you'll get strong, lean, healthier and fitter, in less time than you ever thought possible.