So lately I've been following the Insanity workout and have been enjoying it. Yes I said enjoying it. In less than a month I will take on the Insanity Certification and cannot wait. This fall I will begin teaching Insanity classes at The Body Mill. If high intensity interval Training is the challenge you are looking for then stop on in. The results from Insanity are amazing. This is actually my second time doing the program. Almost anyone can do Insanity. The key is to follow your own pace and listen to your body. Rest when needed. Always have water on hand, which is necessary with every workout.Oh and for this one you might want a sweat towel too.