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Cannabis use, including marijuana, appears to be linked with increased cardiovascular risk, especially for stroke, making it an important consideration for heart disease and stroke prevention and counseling, according to independent, new preliminary research to be presented at the American Heart Association's Scientific Sessions 2026. The meeting is Nov. 6–9 in Chicago.
Regardless of the form (smoked or edible, etc.), cannabis use, which includes marijuana, was associated with the same outcome. From a scientific standpoint, cannabis is the plant, while marijuana is a common term for cannabis products that contain enough THC to produce psychoactive effects.
"Previous research has indicated that cannabis use is rapidly increasing in the United States, with 1 in 6 adults in 2024 reporting having used it within the last month, up from 1 in 10 in 2020—a 51% increase," said study author Aabha Divya, M.B.B.S., M.Ch., an assistant professor in the division of cardiothoracic surgery at the Tulane University School of Medicine in New Orleans.
Between 2016 and 2020, prior research found that cannabis use was linked to poor cardiovascular outcomes, and using cannabis more days per month was associated with an increased risk of poor cardiovascular outcomes.
"We wanted to expand on this earlier work because cannabis use has become increasingly common in the United States, as recreational legalization and commercial availability of various products with cannabis have also expanded.
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