No general increase in psychosis due to legal cannabis in the USA
If cannabis were to contribute significantly to the occurrence of psychosis, then psychoses would have to be diagnosed more frequently in regions where people smoke a lot of weed and more medication would have to be sold to treat psychoses. A research team from the USA has investigated this assumption. Study leader Holly Elser and her team analyzed the anonymized disease data of over 63 million people aged 16 and over.
