I used to read forums for schizophrenics (self disorders fascinate me, look the term up if you want to understand schizophrenia), and it was the consensus there that out of all the recreational drugs cannabis caused the greatest deterioration in one's mental state. Those are generally fairly sick people, but I don't think one can just ignore this signal. I personally went catatonic once after consumption, and I'm not schizophrenic at all. And that was in Amsterdam, so it wasn't some trash spiced up by a 17-years old dealer with whatever he found in his grandma's medical cabinet.
But imagine the kind of self-selection you'd find on such a forum. Furthermore, it's been long known that cannabis use can trigger schizophrenia in those who were already genetically predisposed to such. Your observation and the OP are not news worthy, imo. Bad outcomes have also been observed when combined with immature brains.
But for healthy adults, countless have used cannabis for generations without experiencing harmful reactions.
This one's my favorite: https://thereitis.org/mr-x-by-carl-sagan/
> it was the consensus there that out of all the recreational drugs cannabis caused the greatest deterioration in one's mental state
Methamphetamine and PCP might take issue with this statement.
Weed can make you paranoid, every smoker knows this. It is patently obvious that it could trigger something worse, too, if you are already sensitive.
I think only young people in their weed honeymoon phase get defensive about this.
Problem with recreational marijuana is that it’s so insanely strong. It would be like giving a child 190 proof azeotropic grain alcohol and being shocked that they immediately vomit. I can’t smoke pot - it’s just too strong.
I’ll admit to feeling a bit dumber and foggier after a few weeks of ingesting cannabis nightly though. That’s a real thing.
I don’t know what things are like in Amsterdam, but weed being “high quality” is not a good thing. The potency has skyrocketed over the past few decades. It’s like saying you went to Amsterdam to drink alcohol for the first time and had a bottle of tequila and passed out and puked; the fact that it was high quality tequila does not mean it’s better than a low quality glass of wine or beer. The issue is the doses are way too high.