I have been doing a little bit of that. Maybe not every hour, but I take a break and walk a few laps around the building. It's nice because there is a slope on both sides of the building, so I get some uphill walking as well. Sometimes I take a long walk to the Coffee Shop, which is about a mile away, with a co-worker. I don't drink coffee, but he does, and it is nice to chat and take a nice walk.