Is a cannabis smoker likely to experience conditions like psychosis? Professor Green wants to know and speaks to a psychopharmacologist to find out.

You can watch the full documentary here: https://www.bbc.co.uk/iplayer/episode/p058dgnq/professor-green-is-it-time-to-legalise-weed

If you, or someone you know, have been affected by addiction, the following organisations may be able to help: http://www.bbc.co.uk/programmes/articles/1kS7QTDB16PWkywhsXJLzxz/information-and-support-addiction-alcohol-drugs-and-gambling

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