This morning on NBC's Today Show, Willie Geist sat down with Michael J. Fox and Ryan Reynolds to talk about a shared connection: both Willie's and Ryan's fathers have Parkinson's. Characteristically upbeat, the interview had Ryan joking that he was wearing his Michael J. Fox Foundation underwear in support. "For these two, laughter is medicine," said Willie. And, on his father's diagnosis, Ryan said, "It kind of galvanized everyone else [in our family] to seek resources, and in a strange way it's really brought us together."