Wordsworth wandered lonely as a cloud. Wittgenstein philosophized while walking. "Methinks that the moment my legs begin to move, my thoughts begin to flow,â€ wrote Thoreau. Virginia Woolf wrote â€œStreet Haunting: A London Adventure,â€ about her urban walks. Countless writers take regular walks, just to walk. There must be something to it.
A google of â€œwriters exerciseâ€ turned up only writing prompts. Writers sit and write. Thatâ€™s what we do. But consider that science has proved that excessive sitting, as we do in our cubbyholes these days, not only generates health and mood problems but ruins what health you have. I could tell when a friend was doing heavy writing because his posture sagged, his neck sank into his shoulders, his gut softened and expanded and his butt took on female proportions. What you donâ€™t want is to look like that all the time. Spinal X-rays taken in my 50s showed the lower end of a formerly perfectly good spine permanently curved to the left, and some compressed disks. Spines werenâ€™t designed for sitting for 8, 12 or 18 hours. You have only one spine. Take care of it.
In the absence of health insurance for writers, try a daily 20-minute or 30-minute walk or exercise break. Consider it your treat or sanity bubble. I honestly get a buzz from the oxygenation. Writers often meet for coffee or drinks. Try walking after the coffee or before the drinks. You can chat and commiserate just as much. Do you run and wonder why you're not greyhound-slim? Running burns off sugar, not fat. Walk.
I walk 30 minutes daily, or, in crummy weather, ride a recumbent bike (spine cannot tolerate upright bikes anymore). Twice a week I lift weights to get my back and core muscles to compensate for the spinal damage and let me sleep so the next day I can write.