My sister-in-law has been going to spinning class for a couple of years and now teaches it. It sounds like quite a workout. I used to run the track right past the spinning classes at the high school. It is almost completely dark in the room and they have some high adrenaline tunes cranked. I always thought that was weird and asked JoDee what the heck was going on. She says they turn off all the lights so that no one sees the agony on your face, and they crank up the music so that no one hears the grunting. Hmmm, does that make you feel better or worse? Just kidding! Hey, I say go for it. I know a lot of people that get absolutely hooked, and the only way to keep up with the regulars is to start and become one yourself. You go girl!