Nearly 1 in 5 middle-aged adults and 1 in 17 older adults in the US used cannabis in the past year, with smoking as the primary method and limited medical oversight.
Geriatricians, primary care physicians, public health planners, cannabis policy makers
What the researchers found
Past-year cannabis use: 18.5% of middle-aged (50-64) and 5.9% of older adults (≥65). Smoking was primary consumption method in both groups. About 25% of middle-aged and 20% of older cannabis users consumed for medical purposes, but only ~20% of medical users had a prescription or recommendation. Over 75% viewed medical use as acceptable; older adults were more likely to see cannabis as a gateway drug.
Why it matters
Older adults are especially vulnerable to cannabis side effects including falls, cognitive impairment, and drug interactions. The finding that most older medical users lack prescriptions means they're self-medicating without clinical guidance.
The numbers in context
18.5% of ages 50-64 and 5.9% of ≥65 used cannabis past year. ~25% of middle-aged users and ~20% of older users consumed medically. ~20% of medical users had prescriptions. >75% of both groups viewed medical use as acceptable.
How the study worked
Analysis of Health and Retirement Study data (N=1,324) with weighted prevalence calculations and multivariable logistic regression adjusting for sex, race/ethnicity, household income, and employment. Results stratified by age groups (50-64, 65-74, ≥75) and sex.
What this study cannot tell us
Self-reported data likely underestimates true prevalence. Cross-sectional design. HRS sample may not perfectly represent all middle-aged and older adults. 'Medical use' was self-defined, not clinically verified.
How to read the evidence
Nationally representative survey with validated measures, limited by self-report and cross-sectional design.
When this study was published
Published 2026 using Health and Retirement Study data.
The bigger picture
The aging of the baby boom generation — which came of age during the cannabis era — means healthcare systems need to prepare for a wave of older cannabis users with complex medication regimens and age-related vulnerabilities.
Questions still open
- Are healthcare providers asking older patients about cannabis use? What drug interactions are most dangerous for older cannabis users? Should geriatric medicine incorporate cannabis screening protocols?
Common questions
How common is cannabis use among older adults?
Are older cannabis users getting medical guidance?
Read the original research
Epidemiology of Cannabis Use Among Middle-Aged and Older Adults in the U.S.
American journal of preventive medicine, 70(3), 108149
Citation
Livne, Ofir; Stohl, Malka; Gilman, Jodi; Goldberg, Terry E; Wall, Melanie M; Hasin, Deborah S. (2026). Epidemiology of Cannabis Use Among Middle-Aged and Older Adults in the U.S.. American journal of preventive medicine, 70(3), 108149. https://doi.org/10.1016/j.amepre.2025.108149
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