More Mortality

This morning I heard a news report about a genetic study revealing the existence of a "longevity gene." If you have it, you will be predisposed to a longer lifespan, a hundred years or more. If you lack it, you might still live past a century but it will require more work. You know, like the joke about the fitness buffs that may not live a whole hundred years, but it sure will feel like it! But the longevity gene explains something else, another old saw, almost a...