the best possible exercise. Habituate yourself to walk very far.
First we crawl, then we WALK , at times we run.
Try walking every chance you get. Many benefits from just walking more than sedentary lifestyle. Walk the stairs instead of using the escalator or lift even if you are in a hurry. Be amazed with the speed you can walk than the lift.
Slow pacing while using your hand phone will help you think better, due to more neurotransmitters being produced when there is walking. That's how feet reflexology works for the body. Little steps add up quickly, and compound interest accumulates.
Use break times wisely, by walking around your workplace or home or anywhere. Fresh air is always better than air-conditioned room. Do whatever it takes to keep your bones and body moving and you enjoy walking very far and very long. Remember your water , of course. Smile!