Young Adults’ Alcohol Use and Cannabis Use Rise and Fall Together Rather than Substituting for Each Other

Young adults’ use of cannabis and alcohol tends to rise and fall together, rather than one substance substituting for the other, according to a new study. Understanding the relationship between cannabis use and alcohol use is critical for informing policy and public health strategies. Legalizing recreational cannabis use has raised the possibility that cannabis may substitute for risky drinking or other substance use, potentially with less severe public health consequences.