My wife and I hiked the Grand Canyon last week. One thing I noticed was that there weren't many hikers my age still on the trails.
I offer some advice to those of you who want to be hiking when you are my age:
1. Pay attention to your weight. One pound a year of weight gain doesn't seem much, but over the years it really ads up.
2. Take care of your knees. Most of my friends who are my age say they can't hike because of their knees.
3. Save for retirement. Too many of my friends finally have the time to hike, but can't afford to travel.
Enough wisdom for one day.