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 ...

Shaun T takes it up a notch in this NO REST, Tabata-style strength workout. You heard right... 30 minutes, no rest.

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 ...