Someone told me this funky thing about breathing air previously breathed by others. because our atmosphere is finite, air moves around the world, gets used, recyclyed and used again. Given this, if you are 30 years old you have most likely had air that Einstein, Shakespeare, Ceasar and JFK breathed coarse through your own body. Pretty cool eh.

Before you get too stoked about it realize that this also means the likes of Adolf Hitler, C. Manson, and Corey Haim have also taken a tour through your innards. Still breathin' easy?