New study estimates that teens using cannabis are at 11 times higher risk of developing a psychotic disorder compared to teens not using cannabis. The association between cannabis and psychotic ...

Topline Teens who use cannabis have a significantly higher risk of developing a psychotic disorder compared to those who don’t, according to a study published in the journal Psychological ...

Doctors have long known that excessive marijuana use can trigger psychosis, especially in the young. But new research suggests the link is stronger that ever imagined before.

High potency marijuana is linked to a greater risk of psychosis and addiction, according to new research. The strength of cannabis has increased in the past half century.

In California, where I work as a researcher and clinician studying the links between cannabis use and psychosis, it is not difficult to get a medical marijuana card, even for a teenager.

Young adults at risk of psychosis show reduced brain connectivity, a deficit that cannabis use appears to worsen, a new study has found.

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.

That’s the concern among some experts, as a recent study from the City University of New York (CUNY) identified a link between cannabis legalization and asthma among kids and teens.

Marijuana Dependence Linked to Higher Risk of Death Two new Canadian studies are the largest to date looking at death rates and psychosis associated with cannabis use disorder.

Cannabis use during adolescence and young adulthood was linked to lower academic performance, a systematic review and meta-analysis suggested.

A new study published in the journal Preventive Medicine found that in states where marijuana is legal, the share of teens with asthma is slightly higher than in states where it remains illegal.