“I smoked pot as a kid, and I view it as a bad habit and a vice, not very different from ... cigarettes.” This sentiment, expressed by Barack Obama in January and shared by millions, has once again been challenged — this time by an academic review of 20-years worth of research.
The handiwork of Dr. Wayne Hall, a professor of addiction policy at King's College London and drug advisor for the World Health Organization, the review implicates cannabis in a whole host of health problems, but, in particular, in mental-health issues and addiction among habitual users — especially teenagers....