What am I supposed to do when troubleshooting fatigue settles in? Keep staring blankly at the screen or make me some food and go for a walk around the woods beh

What am I supposed to do when troubleshooting fatigue settles in? Keep staring blankly at the screen or make me some food and go for a walk around the woods behind my house? In the office I'd grab a coffee and go for a walk, was I stealing time from multiple companies because I didn't stare at my screen and instead solved the issue later with a fresh mind?