Should you be eating poison oak?

Probably not. But Wall Street Journal reporter Jeff Horwitz decided to try anyway, putting his body — and specifically his butt — on the line to answer a seemingly straightforward question: Is it possible to build up a tolerance to poison oak by eating it?
Guest: Jeff Horwitz, reporter at the Wall Street Journal; and Mahmoud ElSohly, professor of pharmaceutics at the University of Mississippi
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