Study Links Heavy Cannabis Use To Higher Death Risk, Psychosis [Video]

Key Takeaways

People with cannabis use disorder (CUD) have a 2.8 times higher risk of death, research showsSchizophrenia cases linked to CUD more than doubled after Canada legalized cannabisYoung adults are most at risk for both early death and cannabis-related psychosis

FRIDAY, Feb. 7, 2025 (HealthDay News) — Heavy weed use may be far more dangerous than people realize, according to a pair of studies published in JAMA Network Open.

People diagnosed with cannabis use disorder (CUD) may face nearly triple the risk of death over five years compared to those without the disorder, according to a large study published Feb. 6.

The study, conducted in Ontario, Canada, found that people treated for CUD in hospitals or emergency rooms were 10 times more likely to die by suicide than those in the general population.

They were also significantly more likely to die from trauma, drug poisoning and lung cancer, researchers found.

A separate study — published …