Marijuana use dramatically increases risk of dying from heart attacks and stroke, large study finds
3 minute readPublished: Tuesday, June 17, 2025 at 10:30 pm

Marijuana Use Linked to Increased Risk of Heart Attacks, Strokes, and Death
A comprehensive analysis of medical data involving 200 million individuals has revealed a significant correlation between marijuana use and increased cardiovascular risks. The study, published in the journal *Heart*, found that marijuana users face a doubled risk of dying from heart disease. Furthermore, they have a 29% higher risk of heart attacks and a 20% higher risk of stroke compared to non-users.
The research, which analyzed data from studies conducted between 2016 and 2023, highlights a concerning trend, particularly among younger patients without prior cardiovascular issues. Experts emphasize that the findings challenge the assumption that cannabis poses minimal cardiovascular risk. The study's authors suggest that clinicians should screen patients for cannabis use and educate them about potential harms, similar to how tobacco use is addressed.
The study also raises concerns about the increasing potency of marijuana products. The concentration of THC, the psychoactive compound in cannabis, has significantly increased in recent years, with some products now containing up to ten times the potency of those available in the 1970s. This rise in potency is linked to a higher risk of addiction and other health issues. While the study did not specify the method of cannabis consumption, experts suggest that smoking, vaping, and edibles may all contribute to the increased risk.
BNN's Perspective:
This study underscores the need for a balanced approach to cannabis policy. While the potential benefits of cannabis for certain medical conditions are recognized, the findings highlight the importance of public health education and regulation to mitigate potential risks. Further research is needed to fully understand the long-term cardiovascular effects of cannabis use, especially in light of the increasing potency of available products. Policymakers and healthcare professionals must work together to ensure that consumers are well-informed about the potential health consequences of cannabis use.
Keywords: marijuana, cannabis, heart disease, heart attack, stroke, cardiovascular risk, THC, smoking, edibles, health risks, addiction, public health, cannabis use disorder, potency, health warnings