Here’s a startling fact: psychosis rates among young people in Ontario are climbing, and researchers are sounding the alarm. But here’s where it gets controversial—could cannabis use be a contributing factor? A new study published in the Canadian Medical Association Journal (CMAJ) reveals that individuals aged 14 to 20 are being diagnosed with psychotic disorders, including schizophrenia, at significantly higher rates compared to those born earlier. This trend, spanning 30 years of data from over 12 million Ontario residents, shows a 60% increase in annual diagnoses for this age group, while rates for older adults remain flat or decline. And this is the part most people miss—the study highlights that early intervention can dramatically change the course of someone’s life, yet the reasons behind this rise remain unclear.
Schizophrenia, a lifelong condition marked by hallucinations, delusions, and fixed false beliefs, affects about 1% of Canadians. Dr. Daniel Myran, a family physician and research chair at North York General Hospital, explains that the study focused on whether psychosis rates varied by birth cohorts. For instance, the rate of psychosis in the 14-20 age group jumped from 62.5 per 100,000 in the 1990s to nearly 100 cases per 100,000 by the study’s end. Psychiatrist Sarah Brandigampola, who treats early psychosis at the Ottawa Hospital, calls this a crisis but emphasizes that timely treatment can lead to better outcomes.
Here’s the kicker: while the study links higher rates to factors like male gender, low-income neighborhoods, and substance use, it stops short of proving causation. Myran and his team suggest potential contributors like older parental age, socioeconomic stress, and negative childhood experiences. However, substance use, particularly cannabis, emerges as a leading suspect. Brandigampola notes a stronger correlation between cannabis use and early-onset psychosis in males, but observational studies can’t definitively prove this link.
Take Samantha Mercanti’s story, for example. She experienced her first psychotic episode in her 20s while in university, describing it as seeing lights and hearing otherworldly sounds. After seeking help through a hospital’s outpatient program, she’s now a thriving businesswoman at 44, passionate about dance and running. Her message? Recovery is possible, and hope should never be lost.
Now, here’s a thought-provoking question: With rising psychosis rates among youth, should we reevaluate how we address substance use, particularly cannabis, in mental health discussions? Or are there other societal factors at play that we’re overlooking? Share your thoughts in the comments—this conversation needs your voice.
