I was talking to my grandmother the other day and mentioned that I'd been up until all hours the night before getting some writing done. "You work too hard" was her immediate response, to which I replied that I couldn't help it -- it was in my genes.

I know a lot of people who extended their careers by working into their 70s. My grandmother, however, worked until the age of 91. In fact, she worked until she reached a point where her body could not handle a commute into an office.

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