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Cannabis, What Teenagers Need To Know (2005x13)

Data emisji: Cze 19, 2005

Britain has the highest proportion of young cannabis smokers of any European country - 38 per cent have tried the drug by the age of 16. Until recently, little was known about how cannabis affects developing brains, so reporter Justin Rowlatt gets to grips with the latest research to explore growing evidence of links between the drug and psychotic illness in young people.