During a televised news conference on Monday night, President Trump repeatedly gave out unproven medical advice that linked autism to Tylenol and childhood vaccines. Azeen Ghorayshi, a science reporter for The New York Times, explains what Mr. Trump said and what decades of scientific research actually tells us. Guest: Azeen Ghorayshi, a science reporter for The New York Times. Background reading: Mr. Trump issued a warning based on an unproven link between Tylenol and autism.What to know about painkillers, vaccines, genes and autism.For more information on today’s episode, visit nytimes.com/thedaily. Transcripts of each episode will be made available by the next workday. Photo: Tierney L. Cross/The New York Times Unlock full access to New York Times podcasts and explore everything from politics to pop culture. Subscribe today at nytimes.com/podcasts or on Apple Podcasts and Spotify.