In addition to his day job as Woot's full-time "Debunker," Jeopardy! wunderkind Ken Jennings moonlights as an author of books, and this month he has a new one in stores. It's the fifth in his Junior Genius series, this time chock-full of amazing facts about The Human Body. To mark the occasion, he'll spend all of February debunking anatomical anachronisms and medical misinformation for us. Finally: the inside scoop about our own insides.
The Debunker: Do People Breathe in Oxygen and Breathe Out Carbon Dioxide?
Well, okay. Yes, you do breathe in oxygen and breathe out carbon dioxide, which is why you're still alive. Fine. But you also breathe in plenty of carbon dioxide and breathe out plenty of oxygen. It's a lot more complicated than the diagram you remember from third grade where the people are pumping out carbon dioxide and the trees are pumping out oxygen.