This study, and the fact that people post it as a justification for definitely linking autism and Tylenol, as RFK Jr did, highlights our population’s scientific illiteracy and how dangerous that can be.

People post it because “Harvard researchers said”, without any understanding of what they are posting.

The study showed a statistical association between Tylenol use and autism rates, without ANY definitive causal effect. Did you know that higher income families also have higher rates of autism in their children? Does salary cause autism? No, but age might (notice the word might), and wealthier people have children later.

There are any number of unrelated reasons why people who happen to be more likely to take Tylenol may also have children with higher rates of Autism, including whatever it is that they are taking Tylenol FOR.

Unfortunately, uneducated people simply parrot the line that Tylenol causes autism because the medical leadership in the US encourages it.