Why walking?
For most people, walking regularly is the best exercise. Walking doesn’t require any equipment, and it can actually save people money. It can boost moods and relieve feelings of depression or anxiety. A regular walking habit can also improve heart health and lower the risk of some long-term health conditions.

It took human beings a million years to walk, and just one generation to forget. The CEO of Pedestrian Council of Australia outlines why it's critical to build walking back into our daily lives | Sustainable-business | The Guardian.