Get lean, build muscle, and stay healthy in only ten minutes a day! A Fitness Hall of Fame inductee and world-famous exercise scientist explains the #1 new fitness trend and how to get and keep the body you’ve always wanted. High-intensity interval training (HIIT) is an extraordinarily effective form of training that mixes high- and low-impact activities during periods ranging from seconds to eight minutes. In HIIT Your Limit , Dr. Len Kravitz, who has been inducted into the National...
