We've noticed a trend among our favorite celebrities, and no, it has nothing to do with fashion! From triathlons to spin class, celebrities are proving that sweating doesn't have to be a solo act. They're right: a gym partner has its benefits and may be just the answer to your fitness and weight-loss goals. On days when you need motivation or a little friendly competition, grab a partner and try one of these workouts!
Celeb Fitness Secret: Sweating It Out With Friends
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