Using cannabis can worsen memory, concentration and decision-making, another study claims University of Montreal researchers found cannabis also damages memory Analysis of 2,306 studies looked into Class B drug's effects on the brain Researchers say it can continue to effect mental performance for months
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Using cannabis can affect memory, concentration and decision-making, according to researchers.
Canadian experts reviewed the scientific evidence surrounding the drug.
They warned the effects of cannabis — or marijuana — can persist well beyond the period of intoxication.
University of Montreal scientists claimed children who smoke the drug may perform worse at school because of its effects.
And adults who use the drug, considered a class B substance in Britain, could also suffer at work or impair their driving ability.
Cannabis makes people worse at reacting quickly, making decisions and learning from reading and listening months after, a study by University of Montreal researchers claimed today