In this photo illustration, Tylenol packages and caplets are displayed, in Los Angeles, California, on September 22, 2025. US President Donald Trump on September 22, 2025 urged pregnant people not to take Tylenol over an unproven link to autism, and urged major changes to the standard vaccines given to babies. The announcement comes as the White House has vowed to revolutionize health in the United States, as experts across medicine and science voice broad concern over the administration's (Photo by VALERIE MACON / AFP) (Photo by VALERIE MACON/AFP via Getty Images)

In this photo illustration, Tylenol packages and caplets are displayed, in Los Angeles, California, on September 22, 2025. US President Donald Trump on September 22, 2025 urged pregnant people not to take Tylenol over an unproven link to autism, and urged major changes to the standard vaccines given to babies. The announcement comes as the White House has vowed to revolutionize health in the United States, as experts across medicine and science voice broad concern over the administration's (Photo by VALERIE MACON / AFP) (Photo by VALERIE MACON/AFP via Getty Images)

In this photo illustration, Tylenol packages and caplets are displayed, in Los Angeles, California, on September 22, 2025. US President Donald Trump on September 22, 2025 urged pregnant people not to take Tylenol over an unproven link to autism, and urged major changes to the standard vaccines given to babies. The announcement comes as the White House has vowed to revolutionize health in the United States, as experts across medicine and science voice broad concern over the administration's (Photo by VALERIE MACON / AFP) (Photo by VALERIE MACON/AFP via Getty Images)

In this photo illustration, Tylenol packages and caplets are displayed, in Los Angeles, California, on September 22, 2025. US President Donald Trump on September 22, 2025 urged pregnant people not to take Tylenol over an unproven link to autism, and urged major changes to the standard vaccines given to babies. The announcement comes as the White House has vowed to revolutionize health in the United States, as experts across medicine and science voice broad concern over the administration's (Photo by VALERIE MACON / AFP) (Photo by VALERIE MACON/AFP via Getty Images)

In this photo illustration, Tylenol packages are displayed, in Los Angeles, California, on September 22, 2025. US President Donald Trump on September 22, 2025 urged pregnant people not to take Tylenol over an unproven link to autism, and urged major changes to the standard vaccines given to babies. The announcement comes as the White House has vowed to revolutionize health in the United States, as experts across medicine and science voice broad concern over the administration's (Photo by VALERIE MACON / AFP) (Photo by VALERIE MACON/AFP via Getty Images)

In this photo illustration, Tylenol packages and caplets are displayed, in Los Angeles, California, on September 22, 2025. US President Donald Trump on September 22, 2025 urged pregnant people not to take Tylenol over an unproven link to autism, and urged major changes to the standard vaccines given to babies. The announcement comes as the White House has vowed to revolutionize health in the United States, as experts across medicine and science voice broad concern over the administration's (Photo by VALERIE MACON / AFP) (Photo by VALERIE MACON/AFP via Getty Images)

US comedian and science communicator Bill Nye and wife Liza Mundy pose during his Hollywood Walk of Fame star ceremony in Hollywood, California, on September 22, 2025. (Photo by VALERIE MACON / AFP) (Photo by VALERIE MACON/AFP via Getty Images)

US comedian and science communicator Bill Nye and wife Liza Mundy pose during his Hollywood Walk of Fame star ceremony in Hollywood, California, on September 22, 2025. (Photo by VALERIE MACON / AFP) (Photo by VALERIE MACON/AFP via Getty Images)