I'M REMEMBERING A NONAGENARIAN patient of mine. He was a delightful man I visited regularly at his home, where he still lived well and independently. He'd smoked roll-your-owns, drunk blockade whiskey, and indulged in Caligula-mocking excesses all his life. "My doctors told me years ago that I had to quit all that stuff or it would kill me," he said. "If you like, I can show you where they're all buried."