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Scientists analyzed data on nearly 435,000 patients, ages 18 to -74, to see if there was a link between marijuana use and a higher risk of heart disease, stroke, or a heart attack.
Older marijuana users are at a high risk of heart attack and stroke, while older daily users are 34% more likely to develop heart failure, according to new studies.
A 2000 study by researchers at Boston's Beth Israel Deaconess Medical Center, Massachusetts General Hospital, and Harvard School of Public Health found that a middle-aged person's risk of heart attack rises nearly fivefold in the first hour after smoking cannabis, "roughly the same risk seen within an hour of sexual activity". [78] [79]
Smoking, vaping or eating marijuana is linked to a significantly higher risk of heart attack and stroke, even if a person had no existing heart conditions and did not smoke or vape tobacco, a new ...
Long-term effects of smoking cannabis include lung inflammation. [90] Smoking cannabis has been linked to adverse respiratory effects including: chronic coughing, wheezing, sputum production, and acute bronchitis. [87] It has been suggested that the common practice of inhaling cannabis smoke deeply and holding breath could lead to pneumothorax.
Growing evidence suggests marijuana may be linked to certain heart problems. What's not clear is whether the heart risks are from smoking or if it’s the THC in weed that could be harmful.
Researchers estimate that up to one-third of near-daily cannabis users in the U.S. may experience symptoms, ranging from mild to severe, affecting approximately six million people. The rise of the syndrome in the past two decades coincides with the expansion of marijuana legalization in the United States. [32]
Using marijuana as little as once per month is associated with a higher risk of heart attack and stroke, according to a large study published Wednesday.