Two factors I didn't mention in my original post About the time I retired we adopted a dog (found wandering in the street, couldn't find the owner). I walk the dog 2x/day for about 1/2 hour each. It's not the same as riding 30-40 miles, but I think it contributes to keeping my metabolism up. Also good for mental health. We have four horses and I'm doing more of the outdoor stuff on our 5 acres; makes for, again, more walking.