An alarming new study has found that young cannabis users are nearly twice as likely to suffer a heart attack as those who don’t use the drug. The research, published in the journal Circulation: Cardiovascular Quality and Outcomes, examined the eating and exercise habits of over 1,900 people and found that those who used cannabis regularly had a higher risk of a cardiovascular event such as a heart attack or stroke. The prevalence of cannabis use in the study was as high as 67.3%, including those who consumed it occasionally, those who had tried it once and those who had never tried it. The study also found that those who consumed the highest amounts of the drug were 76% more likely to suffer a heart attack.

People under the age of 45 who smoke marijuana are twice as likely to suffer a heart attack as those who don’t, a study has shown. The report, by the University of Pittsburgh School of Medicine, looked at the risk of heart attack for users of all ages. It was published in the journal Circulation.

A new study has found that young adults who regularly use cannabis are more than twice as likely to suffer a heart attack in the years following their first use of the drug compared to those who have never used cannabis. The research comes from the University of British Columbia, where medical student Jacob Lau has been studying the effects of cannabis use on the heart. Lau began the research when he noticed that patients in his medical training were having more heart problems after they began using cannabis.

Cannabis, whether smoked, vaped, or eaten as an edible, may substantially increase your risk of a heart attack.

According to study published Tuesday in the Canadian Medical Association Journal, people under 45 years old who used cannabis in the previous 30 days had almost double the incidence of heart attacks as those who did not.

According to the World Health Organization, cannabis refers to psychoactive preparations of the Cannabis sativa plant, whose psychoactive ingredient is tetrahydrocannabinol, or THC.

Researchers looked at health data from over 33,000 individuals aged 18 to 44 who participated in surveys conducted by the US Centers for Disease Control and Prevention in 2017 and 2018. Only 0.8 percent of non-cannabis users had a heart attack after using cannabis in the preceding month, compared to 17 percent of individuals who used cannabis in the previous month.

According to main research author Dr. Karim Ladha, clinician-scientist and staff anesthesiologist at St. Michael’s Hospital and the University of Toronto in Canada, “some individuals believe that ingesting cannabis is harmless and can’t damage your health,” but this is wrong.

“There’s mounting evidence that this may damage you in the short and long term,” he added.

It has the potential to cause an erratic heart beat.

According to Ladha, the study did not look at how cannabis impacts heart health, although prior research has shown that the substance may alter a user’s heart rate.


When a person’s heart beat becomes irregular, the quantity of oxygen required by the heart increases, according to Ladha. Cannabis, on the other hand, may reduce the quantity of oxygen supplied to the heart, he said.

“What you end up with is a mismatch in oxygen supply and demand, which leads to heart attacks,” Ladha said.

Cannabis in the modern day is very powerful.

According to Robert Page, head of the American Heart Association’s scientific statement on cannabis, cannabis sold now is considerably more powerful than cannabis sold in the previous 50 years. Page was not a participant in the research.


“This isn’t the same stuff your grandfather used to smoke at Woodstock; this is a lot stronger,” he said.


Many individuals are unaware that cannabis may interact negatively with other medicines, according to Page.


Cannabis, like most other medicines, is processed in the liver, which means it may interact with a variety of cardiovascular treatments, such as blood thinners, he added.

Toxins in marijuana smoke may be harmful to health, study finds


According to research co-author Dr. David Mazer, anesthesiologist at St. Michael’s Hospital and professor in the departments of anesthesia and physiology at the University of Toronto in Canada, the potential advantages of utilizing cannabis for pain management and other medicinal reasons should not be overlooked.


According to Mazer, cannabis users and their health care professionals should “weigh the dangers and advantages of cannabis in their own particular situation.”


According to Page, the AHA does not advocate smoking or vaping cannabis in any amount. Its researchers discovered a possible link to stroke, and he said that vaping has been linked to lung harm.

In the future, Ladha intends to research cannabis users in real time rather than looking back at survey findings.


He highlighted that doing such a research is challenging since cannabis is not legal in every state or at the federal level in the United States.

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