Recent research highlights growing concerns about the cardiovascular risks linked to cannabis use. A comprehensive meta-analysis by French researchers, published in Heart, reviewed data from over 400 million patients across 24 studies to assess cannabis’ association with major adverse cardiovascular events (MACE).
The analysis revealed that cannabis users face a:
- 29% higher risk of heart attack
- 20% higher risk of stroke
- Twice the risk of cardiovascular death
These risks were particularly elevated among people who used cannabis at least weekly.
Notably, one study found cannabis to be a stronger predictor of heart attack than other illicit drugs such as cocaine and opioids. Younger users, especially those aged 15 to 22, were also shown to be at increased risk. A UK Biobank study further revealed that women have a significantly higher risk of cannabis-related cardiovascular mortality than men.
Despite some limitations in the data—such as potential bias and underreporting of cannabis exposure—the review urges healthcare providers to consider cannabis use when treating patients with serious cardiovascular conditions.
Medical experts warn that while cannabis may offer relief for certain illnesses, regular or heavy use can be harmful, especially among seniors. Dr. Marc Siegel, senior medical analyst for Fox News, cautioned that increasing cannabis consumption can lead to anxiety, cognitive impairment, emergency room visits, and even accelerate dementia.
Doctors are concerned that cannabis use poses heart and lung risks similar to smoking cigarettes, and some argue that legalization has outpaced understanding of its health impacts. Increased ER visits for psychosis, vomiting disorders, and accidents linked to cannabis underscore the need for cautious use and further research.
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