If you're starting a workout program that calls itself "Insanity ® by Beachbody," you know it's going to be over the top. This is one of the most challenging fitness programs on the market. Insanity ...

I was channel-surfing early one morning when images of sculpted bodies working out together caught my attention. It wasn’t the first time I had seen this Insanity infomercial, but it was the first ...

Want to get fit but can’t afford a personal trainer? No sweat. Insanity creator Shaun T demonstrates how to do stance jacks. The Insanity Workout. Okay, right now I'm gonna show you Stance Jacks.

Seriously. Mr. T shows zero mercy. If the program is 50 minutes long, he'll give you maybe 2 minutes total to rest, wipe up the pools of sweat under your feet, and sip some water. The rest of the time ...

Insanity came by airmail, bound like a prized first edition. The first time I tried it, it didn't seem too bad. A little sore in the thighs maybe, a little weak in the hip flexors, but nothing ...