 Let's get back to competitive eating with James Smoliga. He's a professor of rehabilitation sciences at Tufts University. Also with us, Adrienne Bittar. She's a lecturer in American Studies at Cornell University and author of Diet and the Disease of Civilization. A competitive eater, Joey Chestnut, made headlines last month after he was banned from competing at Nathan's famous 4th of July competition. Here's 1A's Todd Zwilek.