Nearly all studies show that jogging provides slightly more benefits for your bones, muscles, heart, and lungs. But walking has gained a lot of ground in the last decade or so as a viable exercise. It strengthens bones, tones muscles, and helps your cardiovascular system.
Walking is easier on the body's joints. It causes far fewer injuries to heels, shins, knees, and hips than jogging or stair climbing, according to the American College of Sports Medicine.
And virtually everybody can walk.
Moreover, walking is linked to better physical functioning, even among older people who already suffer from chronic disease, according to the Centers for Disease Control and Prevention and the American College of Sports Medicine. Both of these two groups call for getting at least 30 minutes of walking or a similar activity every day. This level of exercise burns at least 150 calories of energy.
For those of any age who can handle greater intensity and joint-pounding, however, jogging may be the way to go.
I like shoes, however,Christopher McDougall Talk from TED.com also has its values
From http://healthyliving.azcentral.com/jogging-night-2225.html "Because of certain physiological factors—including body temperature and the release of key energy-metabolizing hormones—some joggers may find they function better at night, according to Shawn D. Youngstedt, Ph.D., professor of exercise science at the University of South Carolina."
