Over 14 million people in the United Kingdom have used cannabis, making it by far the most popular illicit drug. Most of them will not develop problems, but for those who do the impact on their mental health can be severe. Cannabis psychosis can be devastating for an individual and their family, leading to hospital admission and potentially longer term mental health problems such as schizophrenia.
We conducted research to look at whether men and women are equally affected by cannabis use and its associated mental health problems. We found that men are four times more likely than women to be diagnosed and admitted to hospital with cannabis psychosis. These elevated rates were consistent over the eleven years of the study period, so not simply a one year blip.