Adolescents who use cannabis could face a significantly higher risk of developing serious psychiatric disorders by young adulthood, according to a large study published in JAMA Health Forum. The ...

Researchers followed more than 400,000 teens until they were adults, and found that those who used cannabis in the past year were more likely to develop psychotic and bipolar disorders, depression and ...

Cannabis is the most used drug with more than 10% of all Americans aged 12 to 17 having used it within the last 12 months.

Teenage cannabis users double their risk of psychotic and bipolar disorders, according to the latest research. They face a ‘significantly higher’ risk of developing serious psychiatric problems by ...

Many people with bipolar disorder have a strong attraction to marijuana. A 2019 review of 53 studies found that almost a quarter of a combined sample of 51,756 individuals with the condition used ...

As she frantically clambered through the baggage drop at Stansted Airport, Rosie van Amerongen was in fear of her life - the voices in her head were telling her that the Devil was in hot pursuit. But ...