Cannabis use among U.S. adults aged 65+ rose from 4.8% in 2021 to 7% in 2023, with higher increases in subgroups like women, high-income earners, those with chronic diseases, and residents of states with legalized medical cannabis, according to a new JAMA Internal Medicine research letter. Researchers warn of health risks: "Given physiological changes and chronic diseases, older adults are susceptible to adverse effects of cannabis, which may require acute medical care," the authors wrote. "Clinicians should consider screening and educating older patients about potential risks of cannabis use." (JAMA Internal Medicine; Hemp Gazette)