Appraising the Risks of Reefer Madness

Studies that have tied cannabis use to schizophrenia in the developing brain are just the tip of the iceberg when it comes to marijuana. Are different strains and synthetic cannabinoids especially dangerous? Are we doing enough to educate young people on the risks? Does marijuana use lower IQ? Where is the line between medical marijuana and recreational use? Our author, a noted British psychiatrist, offers a European perspective on these issues.