I'd just like to remind everyone that each week approximately 23% of Americans take acetaminophen, so if it really caused autism, we'd have a way more functional train system in this country.
My point is that while overdosing on water is HARD, overdosing on acetaminophen is EASY to do as it is in so many over the counter drugs.
You can take one acetaminophen drug for a headache, another for back pain and another for a sore throat. That can set you up for severe liver damage.
It has been reported on for years, so I am sure you can look something up