I honestly don't know how/why. https://www.nbcnews.com/better/health/why-walking-most-underrated-form-exercise-ncna797271 https://www.nbcnews.com/better/health

I honestly don't know how/why. https://www.nbcnews.com/better/health/why-walking-most-underrated-form-exercise-ncna797271 https://www.nbcnews.com/better/health/why-walking-most-under... is one of the first search results in "benefits of walking vs gym" and there is no shortage there. It could be as simple as you are less likely to indulge in a treat after a walk?