the audacity of aging

When I took this picture of Barack Obama, it was 2006 and he was a 45-year-old U.S. senator.  Today he is President of the U.S. and it is his 50th birthday.

I realize that a person can change a lot in appearance in five years, but have you seen him lately?  It's general knowledge that the Presidency can age a person quickly, but if keeps up his aging process at his current rate, imagine how he will look if he can somehow retain that position until January 20, 2017??

Hope he enjoys his 50th.  60th comes quickly after.