You only have one body, and your body has amazing potential. But you also only have one life—why waste more of it than you need to at the gym? Kettlebells, the swingable weights found in gyms and homes everywhere, burn up to four times the fat of other workouts. But they are often ignored or misused, causing wasted time or even injury. Dasha Libin Anderson teaches a one-two punch of kettlebells and martial arts, rolling strength training and cardio into one workout for women that burns five hundred to one thousand calories per hour. The unparalleled kettlebell expert has spent over a decade developing the Kettlebell Kickboxing system based on science and experience and has seen amazing results for women of all fitness levels (including actresses and models) who take classes at her Manhattan studio or work out with her bestselling DVD series.