What’s not to like about walking? It’s free. It’s easy to do, and it’s easy on the joints. And there’s no question that walking is good for you. A University of Tennessee study found that women who walked had less body fat than those who didn’t walk. It also lowers the risk of blood clots, since the calf acts as a venous pump, contracting and pumping blood from the feet and legs back to the heart, reducing the load on the heart. In addition to being an easy aerobic exercise, walking is good for you in many other ways.