A new study indicates that the proportion of new schizophrenia cases linked to cannabis use in Ontario has nearly tripled from 3.7% before legalization to 10.3% after. The research analyzed over 13.5 million medical records from 2006 to 2022, highlighting a significant association between heavy cannabis use and schizophrenia, particularly among young men aged 19 to 24. Experts emphasize the need for caution regarding cannabis use, especially in developing brains, while acknowledging the study's limitations. Teljes cikk (Euronews.com)