The aging of the presidents…

There’s a certain Baby New Year element to most presidential inaugurations: a vibrant, rested and ready candidate takes the oath of office, settles in at the White House and then, judging from the way they look, the weight of the world quickly settles on them. After 4 or 8 years, they’re all but wheeled out, brow heavily furrowed and hair much grayer.

CNN’s got a story on the phenomenon — with pictures of what Barack Obama may look like by 2013.