Sometimes it seems like both sides don’t want proof. And I don’t mean Dem/Rep.
It’s not that both sides don’t want proof. There is no way to get proof. There is a way to get some evidence but that study would never be approved.
A well controlled experimental study would be needed. Half the pregnant women would be given a placebo and the other half given tylenol. That wouldn’t provide proof but it certainly would provide good information. We would never allow that kind of study to happen - at least in this country.