Expert answers from
Do you have to use a lot of cannabis to increase the risk of psychosis? Is the risk increased if you are just a casual user?
Should mental health professionals talk to family members about their relative's diagnosis and treatment?
This page was last updated 19 April 2013.
There are currently no plans to update the page because existing funding for mentalhealthcare.org.uk ceases at the end of April 2013.
If a video is not working, please email email@example.com