I did actually get thrown off a treadmill once, fell over, twisted my ankle badly, and then chipped my tooth. So I'm really scared of something I can fall off of like that. Plus the vertigo has been bothering me a lot lately, which adds an extra layer of suspense.

But it does look like people really love them. Sandy says they are a lot easier on your knees than stairs, too. There were some with fancy handles and some without. I just have to figure out how to get on it without hurting myself.