I jog. Not very fast and not very far, but regularly enough to say “I jog”. I do it because I like to be outside, because I enjoy the exercise, but also because the simple act of rhythmically putting one foot in front of the other sets my mind free. Thoughts and ideas that have been slumbering or are held down by the day-to-day stuff, come bouncing to the surface. Whoever spoke about “jogging one’s memory” didn’t know how spot-on they were. Or maybe they did…
[1540s, “to shake up and down,” perhaps altered from M.E. shoggen “to shake, jolt, move with a jerk” (late 14c.), of uncertain origin. Meanings “shake,” “stir up by hint or push,” and “walk or ride with a jolting pace” are from 16c. The main modern sense in reference to running as training mostly dates from 1948; at first a regimen for athletes.] Online Etymology Dictionary