Human study · Research · 2 Nov 2026
In a U.S. telephone survey of 442,906 adults, reported cannabis use lined up with higher odds of cardiovascular disease, especially stroke
Source: Medical Xpress
What the research found
Preliminary American Heart Association research used 2020-2024 telephone surveys (BRFSS) from the states that asked about cannabis, 16 to 24 states a year, not the whole country. Among 442,906 U.S. adults (average age 49; about half women), people who reported cannabis use on 1 to 5 days a month had 23 percent higher odds of a reported cardiovascular-disease history than people who reported none. Use on 16 to 30 days a month had 21 percent higher odds. The stroke link was stronger: 40 percent higher odds at the lower frequency and 25 percent higher odds with heavy use. History was what a health professional had told them, including heart attack, stroke, or coronary heart disease. This is self-report, a conference abstract, and not a peer-reviewed study. It is not proof that cannabis causes those events. Not medical advice.
Evidence level: Human study. A study in people, but an association isn't proof of cause.
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