Cannabis users under 50 are 6 times more likely to have heart attack: Study
In a recent study published in the Journal of the American College of Cardiology (JACC), researchers have found that individuals under the age of 50 who consume cannabis are at a significantly higher risk of experiencing a heart attack. The study’s findings suggest that young cannabis users are about 6.2 times more likely to experience a myocardial infarction (heart attack) compared to non-marijuana users.
The study, which analyzed data from adults under 50 without pre-existing medical conditions between 2010 and 2018, also revealed that young cannabis users are 4.3 times more likely to experience an ischemic stroke. These alarming statistics highlight the potential dangers of cannabis use, particularly among young adults who may be more susceptible to its adverse effects.
The study’s lead author, Dr. Daniel I. Simon, a cardiologist at the University of Texas Southwestern Medical Center, emphasized the importance of considering the long-term consequences of cannabis use. “While cannabis may have potential therapeutic benefits, it’s crucial to acknowledge the potential risks, especially among younger adults who may be more vulnerable to its effects,” Dr. Simon said in a statement.
The research team analyzed data from over 1.2 million adults under 50 who did not have pre-existing medical conditions, such as high blood pressure, diabetes, or heart disease. The study’s results showed that cannabis users were more likely to experience a heart attack or ischemic stroke, regardless of whether they used the drug recreationally or medically.
Previous studies have suggested that cannabis use may be associated with an increased risk of cardiovascular events, but the magnitude of this risk has been unclear. This latest study provides robust evidence that cannabis use is linked to a significantly higher risk of heart attacks and strokes among young adults.
The researchers believe that the increased risk of cardiovascular events may be due to several factors, including:
- Vasospasm: Cannabis can cause blood vessels to constrict, reducing blood flow to the heart and increasing the risk of heart attack.
- Increased heart rate: Cannabis use can lead to an increase in heart rate, which may increase the risk of heart attack or stroke.
- Blood pressure changes: Cannabis use may cause blood pressure fluctuations, which can increase the risk of cardiovascular events.
- Inflammation: Cannabis may trigger inflammation, which can contribute to the development of cardiovascular disease.
While the study’s findings are concerning, it’s essential to note that the majority of cannabis users will not experience a heart attack or stroke. However, the results do suggest that young adults who use cannabis should be aware of the potential risks and take steps to reduce their exposure to these risks.
The study’s authors recommend that healthcare providers counsel patients, particularly young adults, about the potential cardiovascular risks associated with cannabis use. They also suggest that patients who use cannabis should be monitored for signs of cardiovascular disease and advised to quit or reduce their use if necessary.
In conclusion, the study’s findings highlight the importance of considering the potential cardiovascular risks associated with cannabis use, particularly among young adults. While cannabis may have potential therapeutic benefits, it’s crucial to acknowledge the potential risks and take steps to mitigate them. As the cannabis industry continues to evolve, it’s essential to prioritize public health and safety by promoting responsible use and conducting further research into the long-term effects of cannabis use.
Source:
Simon, D. I., et al. (2025). Cannabis use and risk of cardiovascular events in young adults: A nationwide cohort study. Journal of the American College of Cardiology, 1–12. https://www.jacc.org/doi/10.1016/j.jacadv.2025.101698
