Living To Be 100

I recently picked a new primary care physician. After two visits and exhaustive lab tests, he said I was doing "fairly well" for my age. A little concerned about that comment, I couldn't resist asking him, "Do you think I'll live to be 100?" He asked, "Well, do you smoke tobacco or drink beer?" "Oh no," I replied, "I've never done either." Then he asked, "Do you eat rib-eye steaks and barbecued ribs?" I said, "No, I've heard that all 'red meat' is very unhealthy!" "Do you spend a lot of time in the sun, like playing golf?" he asked. "No, I don't," I said. He said, "Do you gamble or drive fast cars?" "No," I said, "I've never done any of those things." He looked at me and said, "Then why on earth do you want to live to be 100?"