Published October 10, 2025 Updated August 31, 2026 Yesterday Robert F. Kennedy, Jr., the U.S. Secretary of Health and Human Services, cited a study that was previously debunked on this website. During a Trump administration cabinet meeting, Kennedy said, "There are two studies that show children who are circumcised early have double the rateof autism. It's highly likely because they’re given Tylenol." This statement follows Kennedy's controversial advice in September that "pr

Published April 3, 2021 Updated August 31, 2026 Morten Frisch is the lead author of a 2013 letter by mostly European doctors criticizing the AAP task force on circumcision. [1] Two years after the letter was published, Frisch led a study based on his hypothesis that infant circumcision leads to a greater risk of boys developing autism spectrum disorder (ASP). Unsurprisingly Frisch concluded that the study of more than 340,000 boys in Denmark confirmed his expectation. [2] Ant