I think it was back in early twenty-teens when, in a moment of false bravado, I said to my wife, "I'll run exactly one half-marathon with you: The Maui Half." I'd been athletic in high school and college, but never much of a runner for its own sake. Then I got old and my health plan was simple: "Save room for dessert." It worked, and I was still thin because I have the food-related will power to actually save the room.