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 ...

Your muscles will beg for mercy as your strength training starts with Tabata-style "20 seconds on, 10 seconds off" power moves. Your muscles will beg for mercy as your strength training starts with ...

A 60-day cardio-based total-body conditioning program, INSANITY® is likely the hardest workout curriculum ever put on DVD. Fitness trainer Shaun T pushes the limits with 10 workouts packed with ...

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 ...

I was channel surfing when images of sculpted bodies working out together caught my attention. It wasn’t the first time I had seen the “Insanity” infomercial, but it was the first time I wondered if ...