This week's episode is nothing like any of our past episodes, and there will never be another quite like it. How can we be so sure, you ask? Because this week, we're covering prions, the terrifying, genetic material-less infection that is 100% fatal and caused by nothing more than a humble protein. And not just any protein, a protein you already have in your body. Are you sweating yet? Good. Then settle in and listen to the amazing biology of this terrifying twisted proteinacious particle, the fascinating and fraught history that led to its discovery, and the current research on just how scared you need to be of prions in your brain.