"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." If you're not a regular at your local spin class, chances are you'll still have some preconceptions about ...

Music pulses throughout a basement room underneath a Grand Forks apartment building. Legs begin pumping, and suddenly, the lights go out. Illuminated by some faux candles and a single spotlight, Sarah ...

So I'm trying to get into like a very calm, relaxed state, my zen place. I'm a little anxious right now. I've never done this before. See, that's not where you should be. (laughing) You're already, ...

When I hit a plateau, I try to mix things up. Sometimes a change in diet or exercise does the trick. That's the only thing that seems to work for me-that, plus patience and perseverance. So, after ...