A Link Between Marijuana, Schizophrenia Is Tenuous

"Samuel T. Wilkinson's attempt to tie marijuana to mental illness is reefer madness all over again."

NEW YORK: Samuel T. Wilkinson’s attempt to tie marijuana to mental illness (“Pot-Smoking and the Schizophrenia Connection,” WSJ op-ed, July 2) is reefer madness all over again. The evidence indicating a causal relationship between marijuana consumption and mental disorders is “neither very new, nor by normal criteria, very compelling,” according to research published in the journal Read the full article…