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Does Cannabis Cause Psychosis?

An excellent balanced report in The Independent:

“First, there has been no increase in schizophrenia in this country despite a massive increase in cannabis smoking. Second, there is no evidence that cannabis-growing populations such as Jamaica have a higher incidence of psychosis. Third, you can show an association [between the drug and the illness] but you can’t show a cause.”

About the author

Psychologist, Jeremy Dean, PhD is the founder and author of PsyBlog. He holds a doctorate in psychology from University College London and two other advanced degrees in psychology.

He has been writing about scientific research on PsyBlog since 2004. He is also the author of the book “Making Habits, Breaking Habits” (Da Capo, 2003) and several ebooks:

Dr Dean’s bio, Twitter, Facebook and how to contact him.

The Independent