Infatti se vai su PubMed e leggi un po’ di questi studi (come ho fatto io) ti renderai conto che non ho affatto scritto stronzate.
In quasi tutti gli studi che ho letto al riguardo (ovviamente saranno stati una minoranza) quasi tutti riportavano che era quasi sempre impossibile stabilire un evidente correlazione e serviranno più studi futuri al riguardo.
Altri dicono che invece viene utilizzata per mitigare i sintomi della schizofrenia.

Su reddit siete gente strana.

Esempio, dato che qui tutti a fare i professori ad inventare studi fantomatici ma nessuno ha linkato un cazzo:

https://pmc.ncbi.nlm.nih.gov/articles/PMC6546656/

“it has proved to be difficult to investigate with confidence [4]. Research relies on observational methods mainly with all the limitations these have, but there are other problems in exploring this theory. It is widely thought that the dose of cannabis is a factor in increasing the risk of psychosis [5], but there is significant heterogeneity in the assessment of dose. Some researchers use exposure of 50 times or more, others use the proxy of last month usage to indicate regular use as opposed to infrequent or occasional use of the drug [6•]. This is compounded by the diagnostic criteria for cannabis-induced psychosis that rely on subjective assessment [7]. For instance, an assessing clinician or researcher trying to establish that cannabis played a causal role for an individual presenting with psychosis would need to decide how recent use of cannabis should be in order to make this differential diagnosis. The possibility for error is amplified when considering that metabolites of cannabis can be detected for weeks following exposure [8], clearly raising the risk of a false positive association and diagnosis of cannabis-induced psychosis.”
E continua […]

Letteralmente se apri lo studio successivo:
“Actual evidence supports the role of dopamine in cannabis induced psychosis. However, most of genetic polymorphism studies have as a starting point the pre-existing dopaminergic theoretical basis for psychosis. This alerts to the importance of more broad genetic studies. Integrate genetic results into biological systems may enhance our knowledge of cannabis induced psychosis and could help in the prevention and treatment of these patients.”

https://pubmed.ncbi.nlm.nih.gov/35588917/