In his New Yorker article, “Why Walking Helps Us Think,” journalist Ferris Jabr writes that when we go for a walk, we perform better on tests of memory and attention; our brain cells build new connections, staving off the usual withering of brain tissue that comes with age; we can actively change the pace of our thoughts by deliberately walking more briskly or by slowing down; and our attention is left to meander and observe, helping us generate new ideas and to have strokes of insight
exposure to nature helps us switch from voluntary attention, which draws on our reserves of focus and energy, to involuntary attention, which requires less focus and energy. This allows us to recover from mental fatigue.
Walk when you can, where you can. Your body, mind, and soul will thank you for it.