So why not combine these two in this hilarious fitness craze? (lifestyle.baby-g.com)
CrossFit might be the latest fitness craze sweeping the nation, but there's one area of your body that historically hasn't received a lot of attention, although that's starting to change. (mindbodygreen.com)
Hilary Duff and Emma Stone love Rise Nation, a relatively new fitness craze in LA that basically mimics climbing a mountain. (hellogiggles.com)