There's a saying that presidents age twice as fast while in office. Take a look back over the past 60 years of U.S. presidents and judge for yourself how much the office aged them.
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Ronald Reagan Presidential Library
Here's a 1980 look at both Republican candidates Ronald Reagan, then 69 years old, and George H.W. Bush during a debate in Nashua, N.H., moderated by John Breen (center).