A dataset of children born between 1995 and 2019 who were tracked for years afterward offered scientists a rare opportunity to investigate drug use.

Press conference: the president has announced that the use of the painkiller Tylenol by pregnant women can lead to autism

Top U.S. health officials urged pregnant women not to use acetaminophen, the active ingredient in Tylenol, claiming it could cause autism, though studies have been inconclusive.