Young adults’ alcohol use and cannabis use rise and fall together rather than substituting for each other

7/1/21–According to a new study, young adults’ use of cannabis and alcohol tends to rise and fall together, rather than one substance substituting for the other. 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. Alternatively, legalizing cannabis might lead to higher consumption of both cannabis and alcohol, with escalating problematic effects. Read