We have all heard of Zumba, the fitness dance that has won over much of the locals. And we’re not exaggerating: everyone knows Zumba, even if they’ve never tried it. You can hear someone at the gym talking to their best friend about the Zumba class she took, and even if you’ve never seen a Zumba class, you can imagine what she’s talking about. . But Zumba isn’t just about fiery dance moves to crazy rhythms anymore. In fact, Zumba (the company) has developed a whole new concept of fitness. And it’s actually quite different from what you probably think of as Zumba. We’ve…