The Washington Post:  “My wife says that I love my work too much to ever retire. Perhaps she is right. However, my experiences as a neurologist and clinical director of an Alzheimer center have led me to think a lot about the circumstances under which it would be wise to move on. In fact, having reached my 60s — thereby joining the fastest-growing segment of our population — I have been considering what changes in my cognitive capacity would lead me to no longer wish to keep on working.”