Bests & Worsts Reviews from Amazon

I actually loved Insanity. It pushed me, the music and workout was great. It was a great challenge and put me into perfect shape. However, a couple of weeks after completing insanity I started getting back pain which progressed over time. Ultimately it turned into a fully herniated disc. Now I am potentially facing a lifetime of pain and challenges. I read many reviews before doing insanity about it being a high impact workout with repetitive jumping and motions that can cause deterioration in spinal discs. Oh how I regret not paying attention to that ahead of time. I'm 34 and was in good shape before I started insanity and have always been athletic. I've never had back pain before but now I'm stuck. Also, I didn't actually experience any specific back pain or injury while doing the workout and I was careful to build up and use my core during any bending or back focused exercises. I believe it was just the intense, repetitive movement that deteriorated the casing on my disc and now I can't do any exercise. Be careful with this.