As President Obama begins his second term in office, it's important to take a look back at just how much he's aged during his first one.

Artist Jeremy Tubbs has an art project dedicated to doing just that.

In Presidial, the Chicago-based Tubbs stitches together over 2,500 photos of POTUS taken from January 2008 through December 2012 to create a two-minute time-lapse that makes one thing very clear: Being president is a pretty stressful gig.

[H/T: Laughing Squid]