Last September, during a memorably bizarre press conference , President Trump told pregnant women—repeatedly and emphatically—not to take Tylenol. His health secretary, Robert F. Kennedy Jr., pointed to studies that “suggest a potential association” between acetaminophen use during pregnancy and neurodevelopmental disorders. Kennedy was more adamant on The Joe Rogan Experience recently, insisting that he had read 76 studies on the subject over one weekend and concluded that the “science is