As cannabis use becomes more mainstream, a growing body of research is suggesting it’s not as harmless as many believe – particularly when it comes to heart health. Two new studies have found a strong link between cannabis use and an increased risk of heart attacks, even in young, otherwise healthy individuals.
The Studies
The first study, which looked at data from over 4.6 million people under 50, found that cannabis users were more than six times more likely to have a heart attack compared to non-users. In follow-ups over a period of three plus years, the research showed they also faced a major increase in stroke risk, as well as a twofold increased risk of heart failure, and a higher likelihood of dying from cardiovascular issues. Researchers noted that one of their biggest concerns was that all the participants in the study started out with no major heart conditions, healthy cholesterol and blood pressure levels.
The second study, a meta-analysis of 12 previous studies covering more than 75 million people, found that regular cannabis users were 1.5 times more likely to have a heart attack than those who didn’t use. While some of the studies showed mixed results, the overall conclusion was clear: weed and heart problems are linked.
Dr Ibrahim Kamel, who led the studies, says doctors should be talking to their patients about cannabis use just like they do with smoking. With changes in the narrative around the drug in previous decades, many people nice assume cannabis is completely safe, but when it comes to heart health, the evidence suggests otherwise.
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What Does This Mean For Us?
So, why does cannabis increase the risk? Scientists aren’t entirely sure, but they have some theories. Weed could be affecting the way the heart regulates rhythm, increasing oxygen demand in the heart muscle, or disrupting blood flow. One study found that the risk of a heart attack was highest about an hour after consumption, suggesting an immediate impact.
Of course, there are some limitations to the research. These studies couldn’t fully account for things like how much cannabis people were using, how often, or whether they were mixing it with tobacco or other substances. The researchers warned that cannabis is often used alongside other drugs, which could be contributing to the risk.
The Bottom Line
The takeaway? If you’re a regular cannabis user, it might be worth having a chat with your doctor – especially if you’ve got any underlying risk factors for heart disease. With weed becoming more widely accepted, it’s important to understand the potential risks and make informed decisions about your health.
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With almost 18 years in the health and fitness space as a personal trainer, nutritionist, breath coach and writer, Andrew has spent nearly half of his life exploring how to help people improve their bodies and minds.
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