I once did an entire ab workout using an exercise ball [1], so trust me when I say that this piece of equipment makes core workouts about six times harder than they look. You think it's all fun and games — just rolling around with this big bouncy ball! — and next thing you know, your core is on fire and you're fighting for your life to stay upright.
So, now, compare that experience to exercise-ball ab challenges shared by Lupita Nyong'o this year, which consist of her kneeling on the ball and trying to keep her balance all while dancing along to songs. Sounds like a recipe for disaster to me, but apparently not for Nyong'o, who somehow manages to look like she's having a blast (she also keeps a smile when she breaks balance). And of course, she's showing off some strong abs [2] and sporting cute matching workout sets, too.
This balancing act is not nearly as easy as it looks, but if you don't believe me, grab an exercise ball, crank up the tunes, and give it a try. To get in extra ab work, don't forget the dance moves! Watch Nyong'o demonstrate her stability progress ahead.
— Additional reporting by Sam Brodsky
