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.
9 / 33
Kevin Lamarque/Reuters
Here's a more recent look at President George W. Bush, during a Washington, D.C., event on May 15, 2012. Bush was 66 when this photo was taken.