Fair enough, except for three things: 1. If you go out and exercise, by being away from your project, you may acquire a perspective on it, maybe a different w

Fair enough, except for three things: 1. If you go out and exercise, by being away from your project, you may acquire a perspective on it, maybe a different way to look at any problems or bugs that may have come up. This has happened to me more tines than I can count. 2. If you want to eventually be a revered sage and teach young people how to code, you have to live long enough to become a sage in the first place. Exercise is a first-rate way to extend your life. 3. You'll experience the so-called "runner's high" that accompanies vigorous exercise. It's better than drugs. I know -- I've tried both -- exercise is better.