I know what you mean about work taking a toll on you even if it isn't physical. I know some days when I am trying to figure out a particularly hard issue I am totally drained by the time I get home. I'd like to think I have a pretty healthy mind (probably more so than my body), but even I hit my limit some days. My snippets probably consist of doing things for my wife. Like making that extra stop she wasn't expecting to pick something up or things like that.
It's really interesting what galps a person find that little moment, the snippet of time to reset or engage with life differently and outside of their work. It's good to have many different ways to do so.