Guts

This hour of Radiolab dives into the messy mystery in the middle of us.  What's going on down there?   We stick our hand in a cow stomach, get a window into our core through the story of a human science experiment, listen in on the surprising back-and-forth between our gut and our brain, and talk to a man who kind of went out of his mind when a medical procedure left him (for a little while) gutless.