Add Yahoo as a preferred source to see more of our stories on Google. Leotards, bright colors, and leg warmers galore — there’s nothing quite like '80s workouts. But don’t let the sassy outfits and ...

While talking to my coworker about my Shape Up series, I mentioned I wanted to take a dance class. She swore by Grit Fitness’ step aerobics class, so I signed up for an evening session. I was pumped.