Risk for psychosis skyrockets among teens who use cannabis - UPI.com

Teens who use cannabis face 11 times the odds for a psychotic episode compared to teens who abstain from the drug, new Canadian research contends.

• "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.

The teen years may be an especially vulnerable time in this regard, the researchers noted...