The executive director of the Whistler Community Services Society is encouraging people in Whistler to watch a documentary on smoking marijuana that's airing on CBC this week.
Greg McDonnell said the film The Downside of High highlights the under reported reality that teenagers who start smoking marijuana before the age of 16 are four times more likely to become schizophrenic.
"I personally have worked with individuals who this has happened to," said McDonnell.
"When I continue to work with individuals who are prolific pot smokers, I am worried about their mental health because it is a crap shoot. What the research is saying is they don't know who that one in four is going to be."
The Downside of High premiers on Thursday, Jan. 28, at 8 p.m. on CBC-TV, and will be aired again on Thursday, Feb. 4, at 10 p.m. on CBC News Network.