I find traditional gyms pretty boring and I don't think I'm alone in these feelings. The Big Gym industry is aware of people's tendency to get bored with traditional gyms and has been looking for ways to make exercising more fun and engaging for quite a while. From Jane Fonda's tapes to yoga with goats, it seems like there's a way to exercise for everyone's taste.

If you're into high-intensity training, flipping tires and want people to dislike you: there's Crossfit, if you don't think group exercising isn't embarrassing enough and want to show the world how tone-deaf you are: there's Zumba, and if you want to get yelled at in the privacy of your own home there's always Shaun T's Insanity workouts.

But what if you want your exercise-ing to do more good than just for your own body and mind?