Vaccines do not cause autism. Neither does acetaminophen (Tylenol) use in pregnancy. Decades of rigorous research and systematic reviews have shown no credible link. Continuing to promote these myths is not only The headline Tylenol causes autism has sparked concern. But the science tells a more nuanced story. Some observational studies have found that when pregnant women used more acetaminophen, their Mark Hyman, Tylenol, autism and the difference between finding a link and finding a cause in scientific research The role of glutathione redox imbalance in autism spectrum disorder: A review ScienceDirect The role of oxidative stress, inflammation and acetaminophen exposure from birth to early childhood in the induction of autism William Parker, Chi Dang Hornik, Staci Bilbo, Zoie E. Holzknecht, Lauren Gentry,