The best argument against cannabis ‘causing’ schizophrenia is…

Dr. Lester Grinspoon, Prof. David Nutt and Dr. Igor Grant explain why cannabis causing schizophrenia has no merit in science.

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You’ve heard prohibitionists make this argument before: cannabis causes schizophrenia.

But does it really?

In an excerpt from The Culture High documentary, Dr. Lester Grinspoon, Prof. David Nutt and Dr. Igor Grant explain why cannabis causing schizophrenia has no merit in science.

If you ever get into an argument on cannabis and schizophrenia, whether it’s on the internet or in real life, you only really need to ask the following question.

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