A long-term study from Canada analyzed the effects of cannabis legalization on consumption behavior and abuse. In a cohort of 1,428 adults, the frequency of cannabis use increased by an average of 1.75% over five years, while cannabis abuse decreased by 0.4 points.

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3. A long-term study from Canada analyzed the effects of cannabis legalization on consumption behavior and abuse. In a cohort of 1,428 adults, the frequency of cannabis use increased by an average of 1.75% over five years, while cannabis abuse decreased by 0.4 points.