I try to take a walk five days of every week. The course is approximately three and one-half miles and crosses some beautiful terrain in the valleywhere I reside. It goes one direction and then reverses itself. During one part of the walk the wind will be behind me assisting by allowing me tomove at a faster and brisker pace. It is always enjoyable when this happens as I appear stronger and quicker than normal. When the course reverses itself the wind is in my face. Now this experience changes.