Exercise is Medicine. I run on a treadmill at the gym. My view, if not a Kindle, is a pool wherein we often see an exercise class for oldsters, mostly fat and female. The fat old boys are bs-ing with weights, but more likely watching TV at home or dead. Same deal closer to home. Our street dead ends at a Willamette River trail head. 80% of the senior walkers are female. Fit and fat is better than dead.