I don't think this explains all the weird and crazy things people believe and do (even healthy brain chemistry is a shotgun aimed at the wings of a fly from 10 paces), but it's bound to be more harmful than we, crazily, want to believe.
"In the same way, when you load people up with psychiatric drugs, you’re messing with brain chemistry, and you get a mess.
"You can’t predict it or adequately describe it. But it isn’t good. It also disturbs the natural order of things—in the brain and nervous system.
"People go crazy. They say crazy things. They believe crazy ideas. They do crazy things.
"We have to come to grips with this."
https://jonrappoport.substack.com/p/so-many-people-talking-like-irrational-freaks?utm_medium=reader2