One of the Zombie Lies (thanks, Bill Maher) about marijuana that just will not die is this idea that marijuana smoking will make you turn schizophrenic. While there are studies purporting to show an exacerbation of one’s already present schizophrenia by using cannabis, no study shows a causal relationship between using cannabis and developing schizophrenia. Genetics, environment, even the month you are born have a greater statistical significance in predicting schizophrenia than does one’s use of marijuana.
But that didn’t stop Project SAM head Kevin Sabet from trotting out that Zombie Lie when Dr. Sanjay Gupta’s “Weed 3” called for immediate nationwide legalization of medical marijuana: