[tmoertel]

I'm not talking about using a walk as a way to avoid doing real work. I mean doing real work, putting your focus in it, while you walk for, say, at least twenty minutes to really get the blood moving.

But don't wait until you're mentally exhausted to do it. It's not a way to recharge, not a substitute for rest. It's a way to remove distractions and get your whole body into an exercise that requires your attention.