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Cannabis use associated with higher risk of heart attack and stroke, study finds
Cannabis use — whether smoked, eaten or vaporized — is associated with a higher number of adverse cardiovascular outcomes, according to a new study.
Published Wednesday in the Journal of the American Heart Association, researchers found that risk of coronary heart disease, heart attack and stroke increased with any kind of cannabis use, with heavier use associated with higher odds of negative outcomes.
For daily cannabis users, for example, odds of a heart attack were 25% higher compared to non-users and 42% higher for stroke, the study found.
“Despite common use, little is known about the risks of cannabis use and, in particular, the cardiovascular disease risks,” lead author Abra Jeffers, a data analyst at Massachusetts General Hospital in Boston, said in a news release. “The perceptions of the harmfulness of smoking cannabis are decreasing, and people have not considered cannabis use dangerous to their health. However, previous research suggested that cannabis could be associated with cardiovascular disease. In addition, smoking cannabis — the predominant method of use — may pose additional risks because particulate matter is inhaled.”
The cross‐sectional study used survey data from 430,000 adults in the U.S. spanning from 2016 to 2020 with participants aged 18 to 74. The data also allowed them to control for other cardiovascular risk factors and tobacco use, showing a similar association was true even among never‐tobacco smokers.
“Our sample was large enough that we could investigate the association of cannabis use with cardiovascular outcomes among adults who had never used tobacco cigarettes or e-cigarettes,” Jeffers said. “Cannabis smoke is not all that different from tobacco smoke, except for the psychoactive drug: THC vs. nicotine. Our study shows that smoking cannabis has significant cardiovascular risks, just like smoking tobacco. This is particularly important because cannabis use is increasing, and conventional tobacco use is decreasing.”
Since this study did have some limitations, including heart conditions and cannabis use being self-reported, researchers are calling for more research that follow groups of individuals over time.
For now, the study “adds to the growing literature that cannabis use and cardiovascular disease may be a potentially hazardous combination,” Robert L. Page, professor at the Skaggs School of Pharmacy and Pharmaceutical Sciences at the University of Colorado School of Medicine, said in the release.
The findings should also be a “call to action for all practitioners,” added Page, who was not involved in the study.
The International Brotherhood of Teamsters says workers at seven Amazon facilities will begin a strike Thursday morning in an effort by the union to pressure the e-commerce giant for a labor agreement during a key shopping period.
The Teamsters say the workers, who authorized walkouts in the past few days, are joining the picket line after Amazon ignored a Dec. 15 deadline the union set for contract negotiations. Amazon says it doesn’t expect any impact on its operations during what the union calls the largest strike against the company in U.S. history.
The Teamsters say they represent nearly 10,000 workers at 10 Amazon facilities, a small portion of the 1.5 million people Amazon employs in its warehouses and corporate offices.
Amazon is ranked No. 2 on the Fortune 500 list of the nation’s largest companies.
At a warehouse in the New York City borough of Staten Island, thousands of workers who voted for the Amazon Labor Union in 2022 and have since affiliated with the Teamsters. At the other facilities, employees – including many delivery drivers – have unionized with them by demonstrating majority support but without holding government-administered elections.
The strikes happening Thursday are taking place at an Amazon warehouse in San Francisco and six delivery stations in southern California, New York City, Atlanta and the Chicago suburb of Skokie, Illinois, according to the union’s announcement. Amazon workers at the other facilities are “prepared to join” them, the union said.
“Amazon is pushing its workers closer to the picket line by failing to show them the respect they have earned,” Teamsters General President Sean M. O’Brien said in a statement.
“If your package is delayed during the holidays, you can blame Amazon’s insatiable greed. We gave Amazon a clear deadline to come to the table and do right by our members. They ignored it,” he said.
The Seattle-based online retailer has been seeking to re-do the election that led to the union victory at the warehouse on Staten Island, which the Teamsters now represent. In the process, the company has filed a lawsuit challenging the constitutionality of the National Labor Relations Board.
Meanwhile, Amazon says the delivery drivers, which the Teamsters have organized for more than a year, aren’t its employees. Under its business model, the drivers work for third-party businesses, called Delivery Service Partners, who drop off millions of packages to customers everyday.
“For more than a year now, the Teamsters have continued to intentionally mislead the public – claiming that they represent ‘thousands of Amazon employees and drivers’. They don’t, and this is another attempt to push a false narrative,” Amazon spokesperson Kelly Nantel said in a statement. “The truth is that the Teamsters have actively threatened, intimidated, and attempted to coerce Amazon employees and third-party drivers to join them, which is illegal and is the subject of multiple pending unfair labor practice charges against the union.“
The Teamsters have argued Amazon essentially controls everything the drivers do and should be classified as an employer.
Some U.S. labor regulators have sided with the union in filings made before the NLRB. In September, Amazon boosted pay for the drivers amid the growing pressure.
NEW YORK — The Teamsters union is launching a strike against Amazon at numerous locations across the country, including in Maspeth, Queens.
The Teamsters are calling it the largest strike against Amazon in United States history, and it’s set to begin at 6 a.m. Thursday. In addition to New York City, workers will be joining picket lines in Atlanta, Southern California, San Francisco and Illinois.
In a video announcement released Wednesday night, workers voiced their frustrations.
“Us being strike ready means we’re fed up, and Amazon is clearly ignoring us and we want to be heard,” one worker says in the video.
“It’s really exciting. We’re taking steps for ourselves to win better conditions, better benefits, better wages,” another worker in the video says.
The union says it represents about 10,000 Amazon employees and that Amazon ignored a deadline to come to the table and negotiate. The $2 trillion company doesn’t pay employees enough to make ends meet, the union asserts.
At the height of the holiday season, many are wondering what this means for packages currently in transit.
Teamsters President Sean O’Brien said, “If your package is delayed during the holidays, you can blame Amazon’s insatiable greed.”
Amazon says Teamsters are misleading the public
An Amazon spokesperson says the Teamsters are misleading the public and do not represent any Amazon employees, despite any claims.
“The truth is that the Teamsters have actively threatened, intimidated, and attempted to coerce Amazon employees and third-party drivers to join them, which is illegal and is the subject of multiple pending unfair labor practice charges against the union,” the spokesperson said in a statement.
An Amazon representative says the company doesn’t expect operations to be impacted.
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