Why wouldn’t Kafka’s father look at him over breakfast? What does periblepsis mean? Why does Mary Roach have her arm inside a cow’s stomach? How did I make Mary cry? These and many more questions are answered in our delightful conversation with Mary Roach, whose latest book Gulp: Adventures on the Alimentary Canal is just out in paperback. Plus, we talk to science writer Virginia Hughes about recent research on the connections between gastric bypass surgery, gut bacteria and weight loss.
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