Cannabis 'more harmful to under-18s than adults' - video

Tuesday, 28 Aug 2012

# Medical research

New research covering nearly four decades shows that adolescents who regularly use cannabis are at risk of permanent damage to their intelligence, attention span and memory. The long-term study produced the first convincing evidence that cannabis has a different and more damaging effect on young brains than on those of adults

Tuesday, 28 Aug 2012

The GuardianTramp

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