When you think of a "circus workout," you probably envision bendy yoga poses, or plopping into the splits. But that's not what the stars of Cirque du Soleil's "O," a show in Las Vegas that's performed ...

All I can say is, it's a good thing no one else was home when I attempted this Cirque du Soleil arms workout. I knew it would be tough (my core quakes just thinking about the Cirque du Soleil Extreme ...