this post was submitted on 04 May 2025

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111

The Link between Cannabis and Psychosis in Teens Is Real (www.scientificamerican.com)

submitted 14 hours ago by flango@lemmy.eco.br to c/world@lemmy.world

107 comments fedilink hide all child comments

Teens have access to vastly more potent cannabis than their parents had at their age. Parents need to understand the risks, including psychosis

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[–] protist@mander.xyz 61 points 9 hours ago* (last edited 9 hours ago) (3 children)

I worked inpatient psych for a long time, and can tell you first-hand the link between psychosis and cannabis is real. No, this does not mean "if you smoke weed you're going to get psychotic!" What it does mean is that if you're someone with a genetic predisposition for schizophrenia (e.g. you have a known family history) weed is a potential trigger for a psychotic episode. If someone has already developed schizophrenia, smoking weed can make their symptoms worse and more difficult to manage with medications.

80% of people coming through the psych hospital, whatever, I don't care if you smoke weed. Honestly, I wish people would smoke weed rather than use meth, K2, or a bunch of other drugs that fuck people up. But for that subset of people prone to psychotic episodes, the conversation centers around "some people can smoke weed and be fine, and you are not one of those people."

The most common ages for men to develop fist episode psychosis are 18-25, and while it's dumb that this article focuses on teenagers, the risk in that age group is genuinely higher. This article really is dumb overall and does not explain any of this well

[–] SunshineJogger@feddit.org 3 points 3 hours ago* (last edited 3 hours ago)

I switched from drinking too much alcohol too often (wine, beer, etc) to occasionally dry vaping weed about 8 years ago. And from my mental and physical perspective it was a extreme shift to the better.

So I would even include alcohol in your list.

And I wouldn't let my kids use weed as long as long as I am capable to control that aspect.

[–] Ledericas@lemm.ee 2 points 3 hours ago (1 children)

i heard this too, some people have accounted thier friends went full schizo after getting baked, of couse they need to have underlying disease first.

[–] futatorius@lemm.ee 2 points 51 minutes ago

I have friends who are now diagnosed schizophrenics, whose first major symptoms occurred while they were smoking weed. I have more friends whose schizophrenia appeared during or immediately after use of psychedelics. I tend to favor the belief that they had an underlying condition that was triggered, but I'm also slightly suspicious of the reasoning, which is too much like "they were already cracked and that's why they broke at that time" which can be tautological.

Hopefully, someone will do a good study of people who show early or precursor symptoms of schizophrenia and look at their risk of getting full-blown symptoms versus the baseline population, with or without recreational drug use.

[–] cyberpunk007@lemmy.ca 5 points 5 hours ago (2 children)

Help me out here. I read the symptoms of psychosis, and I've definitely experienced those a couple times but only when I get super baked. But when it wears off I'm normal again.

What am I missing? To me this sounds like there's a link between bad driving and people that drink which is like "duh" to me.

[–] protist@mander.xyz 9 points 5 hours ago

Substance-insuced psychosis (psychotic symptoms while you're intoxicated) is a different diagnosis than a psychotic episode. That psychotic symptoms are not due to substance intoxication is actually one of the criteria of a psychotic episode. What I'm talking about are people for whom weed can trigger a psychotic episode that doesn't go away after the high wears off.

[–] quetzaldilla@lemmy.world 2 points 3 hours ago (1 children)

Wikipedia will be a much better source, but my understanding is that psychosis can be a temporary symptom, or it can be a permanent health condition that calls for medical treatment.

Psychoactive drugs like marijuana, mushrooms, LSD, etc. can trigger permanent psychotic health condition on people who have genetic traits predisposed to such conditions.

It's like a genetic game of roulette whenever any of us smoke it-- it could be the beginning of a very difficult health condition to manage for the rest of our lives.

[–] futatorius@lemm.ee 1 points 48 minutes ago

can trigger permanent psychotic health condition on people who have genetic traits predisposed to such conditions

Why this guy and not the other guy who's asymptomatic? Ah, a "genetic predisposition."

That doesn't seem like a scientific explanation, more a Just So Story, or at best, a hypothesis. It might be true, but where's the evidence?

[–] deranger@sh.itjust.works 88 points 14 hours ago (14 children)

This article blows. “Genetically modifying” cannabis for higher THC content? You mean breeding, like every other plant grown for consumption?

[–] thorhop@sopuli.xyz 14 points 10 hours ago (3 children)

Listen, I tell my countrymen all the time: we want to legalize, but only "low grade* to "mid grade". I.e not high grade. We're kind of strict though, almost dry state. Why?

Skunk and the likes have been bred to maximize THC content at the cost of the CBD content. The problem there being that THC is psychoactive and in strong amounts can even be sort of psychedelic, whereas CBD is an antipsychotic that counteracts the negative effecta THC has.

The bigger nut though - and this is the frustrating part - THC can never actually cause psychosis, but can bring out latent psychotic tendencies or be part and parcel of bringing onset psychosis - but a drunken stooper or even an intense run could do that too.

When it comes to high grade tho: do not fuck around with it. If you've never tried cannabis, make sure you don't get a skunk type strain or anything that is deemed "heavy". It's not necessary anyway, it's just a stupid trend between bros to try to out stone or out high each other. "Ooo, I'm the most high! ha ha ha ha"

It's been an arms race between breeder for decades now regarding maximizing THC content, but let me just say gtfo here with that noise. Give me a working man's spliff any day, thank you very much. We're supposed to function as well.

[–] futatorius@lemm.ee 2 points 43 minutes ago

I strongly disagree with that view. The stronger the strain, the less you have to smoke or vape to get a desired effect. Smoking, in particular, has well-documented side effects, including COPD.

Your beliefs about the psychopharmacology of THC and CBD are simplistic. The actual mechanisms (and number of different cannabinoids involved) are far more complex.

Go ahead and choose the strength that suits you, but don't presume that gives you the right to impose that choice on others.

[–] deranger@sh.itjust.works 21 points 10 hours ago (5 children)

That’s fine to have your own opinion but don’t restrict my rights to grow the stickiest of the icky. Sometimes I want to roast a fat joint and be functional. Sometimes I just want to sleep without toking for a half hour. One hit shit absolutely has its place, and with accurate labeling, you can be the judge.

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[–] 30p87@feddit.org 61 points 14 hours ago (2 children)

he had had persistent delusions for more than six months. Sam was fully convinced that the government was following him and constantly surveilling him

That's not a delusion tho.

[–] umbrella@lemmy.ml 2 points 3 hours ago

not anymore it isnt

[–] Zippygutterslug@lemmy.world 19 points 10 hours ago* (last edited 10 hours ago)

The government probably is surveilling them.

https://dnyuz.com/2025/04/30/this-is-what-we-were-always-scared-of-doge-is-building-a-surveillance-state/

Also, anecdotes are not evidence unless you've got a brain worm.

[–] Buffalox@lemmy.world 45 points 14 hours ago* (last edited 14 hours ago)

You know, I'm not really interested in a long anecdote about Sam and his father. It doesn't add any real information.
I had hoped to read about the actual evidence.

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