About 10 days ago I took a trip to Houston by plane and home, and then to Chattanooga by car and home. There were delays, standing in long lines, canceled flights, exhausting! When I got home to Wilmington NC a couple of days ago, I was tired. I had done no exercising while I was away.

What to do in retirement! That was not an issue for me! Since my late 40s I’ve worked for myself and age 65 came and went, just another birthday! I’m always surprised when I’m reminded of my age. I didn’t expect to be here at 92. I remember when I was 60 thinking about what I’d be doing if I got to 80. The years went by in a blink. It was only when I reached 90 that suddenly my age became a topic and questions were asked about how this old guy still keeps running around!

It’s well known that regular exercising slows the aging process and prolongs life. A great many studies show this. They actually show...