Release some of that aggression in a kickboxing class where you’ll learn to combine martial arts kicks with boxing punches for a great workout. There are many different styles of kickboxing and variants to choose from, for example, Brazilian Jiu-Jitsu, Muay Thai, Burmese kickboxing, American kickboxing, Indian adithada, and French savate, to name a few. Many of the kickboxing forms and styles have evolved into national and international competitions. As a kickboxer, you typically “fight” in rounds of varying duration (these are usually agreed upon prior to the fight). You get a great cardio workout regardless of the form of kickboxing you choose, and when you study it with a spouse or a friend you can practice (and get in shape) together.