Heart Health

Marijuana use disorder may raise the risk of heart problems

Research we're watching

By , Executive Editor, Harvard Heart Letter

13fc2593-d31d-41eb-89d0-1f04663728f9

Up to three in 10 people who use marijuana (also called cannabis) may be unable to stop using the drug, even when it has harmful effects on their lives. A new study suggests that this problem — known as cannabis use disorder (CUD) — is linked to a substantially higher risk of cardiovascular problems.

The study included nearly 60,000 people registered in Canadian health databases. About half of them had CUD. Researchers found that compared to people without CUD, those with CUD were about 60% more likely to experience a heart attack, stroke, or other cardiovascular problems.

To continue reading this article, you must log in.

Subscribe to Harvard Health Online for immediate access to health news and information from Harvard Medical School.

  • Research health conditions
  • Check your symptoms
  • Prepare for a doctor's visit or test
  • Find the best treatments and procedures for you
  • Explore options for better nutrition and exercise
Learn more about the many benefits and features of joining Harvard Health Online »

I'd like to receive access to Harvard Health Online for only $4.99 a month.

Sign Me Up

Already a member? Login ».

About the Author

photo of Julie Corliss

Julie Corliss, Executive Editor, Harvard Heart Letter

Julie Corliss is the executive editor of the Harvard Heart Letter. Before working at Harvard, she was a medical writer and editor at HealthNews, a consumer newsletter affiliated with The New England Journal of Medicine. She … See Full Bio
View all posts by Julie Corliss

About the Reviewer

photo of Christopher P. Cannon, MD

Christopher P. Cannon, MD, Editor in Chief, Harvard Heart Letter; Editorial Advisory Board Member, Harvard Health Publishing

Dr. Christopher P. Cannon is editor in chief of the Harvard Heart Letter. He is a professor of medicine at Harvard Medical School, and senior physician in the Preventive Cardiology section of the Cardiovascular Division at … See Full Bio
View all posts by Christopher P. Cannon, MD

Disclaimer:

As a service to our readers, Harvard Health Publishing provides access to our library of archived content. Please note the date of last review or update on all articles.

No content on this site, regardless of date, should ever be used as a substitute for direct medical advice from your doctor or other qualified clinician.

You might also be interested in…

Medical Marijuana: Facts about cannabis, THC, and CBD

Medical cannabis is available in more delivery methods than ever before, such as gummy bears, dried flowers, pills, lotions, drops and a variety of edibles, but what exactly does it do?

With so much misinformation and junk-science on the internet, it is important to get solid facts from doctors and scientists you can trust before deciding if medical marijuana could help you. 

Now leading experts at Harvard Medical School are here to help you separate fact from frightening fiction about medical cannabis so you can make informed decisions. There are benefits for some conditions, and no benefit for others. And, while there is a lot of positive talk about cannabis, there are risks—especially if you’re over 55.
 

Read More

Free Healthbeat Signup

Get the latest in health news delivered to your inbox!

Harvard Health Publishing Logo

Thanks for visiting. Don't miss your FREE gift.

The Best Diets for Cognitive Fitness, is yours absolutely FREE when you sign up to receive Health Alerts from Harvard Medical School

Sign up to get tips for living a healthy lifestyle, with ways to fight inflammation and improve cognitive health, plus the latest advances in preventative medicine, diet and exercise, pain relief, blood pressure and cholesterol management, and more.

Harvard Health Publishing Logo

Health Alerts from Harvard Medical School

Get helpful tips and guidance for everything from fighting inflammation to finding the best diets for weight loss...from exercises to build a stronger core to advice on treating cataracts. PLUS, the latest news on medical advances and breakthroughs from Harvard Medical School experts.

BONUS! Sign up now and
get a FREE copy of the
Best Diets for Cognitive Fitness

Harvard Health Publishing Logo

Stay on top of latest health news from Harvard Medical School.

Plus, get a FREE copy of the Best Diets for Cognitive Fitness.