Trump claims acetaminophen during pregnancy causes autism. Large review of 2.4 million Swedish kids from 1995-2019 shows no link to autism, ADHD, or intellectual disability. ACOG deems acetaminophen safe in pregnancy. Skipping pain relief risks mother and baby harm. Autism diagnoses rose to 1 in 31 US eight-year-olds by 2022 due to broader definitions and better screening, not environmental triggers. Kenvue stock dropped 5.6% on announcement fears. McNeil rejects link citing independent science. Kennedy pledged to identify autism cause by September but pushes debunked vaccine theories.