Insanity 

Is a revolutionary cardio-based total-body conditioning program based on the principles of MAX Interval Training. MAX intervals Training allows a person to beat the "streets adaption response", which normally happens when your body gets used to exercising at one level of exertion. INSANITY pushes the participant to new training heights, resulting in more calories burned, faster results and more efficient metabolism "Insanity" interval training is the pinnacle of cardio training.