“One of my lessons relearned is the profound problem-solving power of the walk. I used to be world-class. I’d get stuck on some writing question, feel the subtlest hitch in my flow, and, SPROING, I’d be up out of my chair, spring-loaded, already halfway around the block.” – Robin Sloan
https://www.robinsloan.com/newsletters/what-would-a-wizard-read/

Regular walks have been a key part the way I work for the best part of a decade now, though I’ve also had periods of time where I’ve let the habit slide. These days, I have a similar response to my mind feeling clouded, or feeling stuck on a problem or a deliverable: I get up and go for a walk, and usually I’ve resolved it by the time I’m back at my desk.