Anti-Marijuana Ad’s Dubious Claim A Scary Hit With Parents

CANADA:  Health Canada‘s latest anti-marijuana ad makes a “scary” claim about lowered IQ that has been widely challenged by researchers, but the campaign went ahead anyway after that message tested well with focus groups.

An ominous 30-second ad now on YouTube and TV warns that smoking too many joints can seriously harm a teen’s developing brain, with the words “Decreased IQ” crossing the screen.

The spot was chosen after that message got the strongest reaction from focus groups of parents who were privately shown a similar ad and several alternatives in cities across Canada in June.

The parents, described by the interviewers as “generally uninformed regarding marijuana health risks,” reacted with alarm when told marijuana can trigger psychosis, schizophrenia and a drop in IQ in young, still-developing brains.

Read full article @ CBC