Cannabis accelerates brain ageing, major study reveals
Smoking cannabis ages the brain by an average of 2.8 years – almost five times as much as excessive alcohol consumption – a major new study has revealed.
Smoking cannabis ages the brain by an average of 2.8 years – almost five times as much as excessive alcohol consumption – a major new study has revealed.
A feature-length documentary shows the hidden costs of cannabis legalisation in Colorado, one of the first US states to allow recreational use of the drug.