Are You Up To The Most Challenging Cardio Workout

If you feel that your current cardio workout is not challenging enough, then you need to take a look at Insanity.

 

 

It covers intervals of strength, power, resistance, and core training. As you can see from the video, you don’t have to use any equipment or weights. The best part is that it works for any level of fitness.

Check out Insanity here.