BurstFit FIRE: Dr. Josh Axe's DVD Workout Program Get lean, toned, or grow stronger, with a fun variety of mix-and-match routines to keep you motivated High Intensity Interval technique accelerates the results process by constantly pushing you and getting your heart rate up so your body never plateaus Collection of 3 highly diverse and intense DVD workouts Also includes 28 Day Quickstart guide workout calendar Personal trainer Dr. Josh Axe and wife, Dr. Chelsea Axe will keep you engaged every step of the way