A Few Times a Month Still Showed Up in the Stroke Data. Cannabis Deserves the Tobacco Question.

If you smoke a joint at a friend’s place a couple of weekends a month, you probably file yourself under “basically doesn’t count.” The American Heart Association just put that category under a microscope. In a poster at its Scientific Sessions in Chicago, Tulane cardiothoracic surgeon Aabha Divya and colleagues analyzed federal health survey answers from 442,906 U.S. adults between 2020 and 2024 and found that people using cannabis just 1 to 5 days a month had 23% higher odds of reporting cardiovascular disease and 40% higher odds of reporting a stroke than people who did not use. Heavy users, 16 to 30 days a month, came in at 21% higher odds for heart disease and 25% for stroke. Heart attack showed no significant link to how often people used.

Cannabis has earned the same question at the doctor’s office that tobacco gets, and most clinicians still are not asking it.

Now the honest caveats, because people who use cannabis have been lied to in both directions for fifty years. This is a single snapshot: people reported their use and their diagnoses at one point in time, so it cannot show which came first or that cannabis caused anything. It has not yet been peer reviewed. It knows nothing about potency or dose, and the “non-user” group may include people who quit after getting sick. The fact that occasional users looked worse than daily users on stroke is strange, and Divya herself said the link “was not straightforward.” A strange result is a reason to study harder, not a reason to dismiss it.

It is also not alone. This week, Oregon’s health authority updated its official review of cannabis evidence, and deputy state health officer Tom Jeanne said that taken together, “the majority of the evidence points to risks,” including stroke, heart attack, psychosis and cannabis use disorder, with the clearest benefits tied to pharmaceutical cannabinoids. That is a state that legalized retail cannabis a decade ago saying so on the record. And today’s products are not your uncle’s; we have written about why tolerance pushes people to double the dose for the same high.

For providers, the move is one line on the intake form, asked the way AHA expert Robert Page put it: clinicians should be addressing cannabis use “as they would tobacco use.” Ask how often, in what form, and how strong, then check blood pressure, especially for anyone who also smokes cigarettes or has a family history of stroke. More on the plant and its biology lives on our cannabis pillar.

“Legal” was never the same word as “harmless.” Weekend use is not a moral failing, and it is not a free pass either. It is a thing your heart is counting, whether or not anyone at your doctor’s office asked.