flexibility, coordination, and endurance. You'll slash stress, too. You'll typically take a group class, usually an hour long, at a kickboxing studio, gym, or rec center. You won't be fighting ...

Stretching and kicking improve flexibility over time. "Before kickboxing, begin with a 5 to 10 minute warm-up exercise, including jumping jacks, high knees, and stretches," suggests Agarwal.