Home 2020 Good News: “Good Coffee Will Not Hurt the Heart”

Good News: “Good Coffee Will Not Hurt the Heart”


OK, so your Doctor may have cautioned that the caffeine in coffee can set your heart racing and cause an abnormal heartbeat.

Well, that’s Bunk, a new study reveals. 

We were unable to find any evidence that those who drank coffee had a higher risk of developing abnormal heart rhythms. That’s especially relevant because a common reason that health care providers recommend avoiding coffee is precisely to avoid abnormal heart rhythms,” said lead researcher Dr. Gregory Marcus. 

In fact, coffee may reduce the risk for future atrial fibrillation (a-fib) and other arrhythmias, said Dr. Marcus, a professor of atrial fibrillation research at the University of California, San Francisco. 

Arrhythmia refers to an improper beating of the heart; either too fast, too slow or erratically. Untreated arrhythmias can lead to cardiac arrest and stroke, according to the American Heart Association (AHA).

For the study, Dr.Marcus and his colleagues collected data on nearly 300,000 people in the UK Biobank, a long-term study in Britain. Average age of participants was about 57 anni. 

Over 5 yrs of follow-up, more than 13,000 people developed an arrhythmia. This included more than 4,700 with atrial fibrillation or atrial flutter, nearly 800 with supraventricular tachycardia, nearly 400 with ventricular tachycardia, and more than 300 with premature ventricular complex.

Compared with not drinking coffee, having up to 5 or more cups a day actually lowered the risk for any of these arrhythmias, the researchers found. Moreover, every additional cup lowered the risk 3%.

Dr. Marcus said that coffee might be good for you. It contains antioxidants, improves metabolism, enhances exercise performance and increases alertness and concentration. 

Also, a regular coffee habit may lower the risk of heart disease and stroke. 

The study only observed an association, and there may be exceptions, especially for someone with an existing heart rhythm abnormality.

It has been a concern for a long time that caffeine can cause heart rhythm problems, so reading this is reassuring in some ways, but I think what the lay public always needs to do is understand what research studies show and don’t show,” said Dr. Laurence Epstein, system director of electrophysiology at Northwell Health in Manhasset, New York. He was not part of the research.

What this study shows is that people who drank coffee had a lower risk of heart rhythm problems. “And that’s fine, but one of the things we know, and we found over the years, is that each patient is different,” Dr. Epstein said. 

There are some patients who can tell you triggers for atrial fibrillation, and there are others who cannot,” he said. “There are some people for whom caffeine is a definite trigger that if they drink any coffee or chocolate or anything with caffeine, it produces atrial fibrillation, but for other people, it has no effect.” 

People need to know their own body, and it’s always best not to overdo things, moderation is always the Key. So go ahead and enjoy your coffee and make sure you drink good coffee.

The results of the study were scheduled for presentation at the meeting of the Heart Rhythm Society, which was canceled due to the C-19 coronavirus chaos. Data and conclusions released prior to peer review are generally considered preliminary.

Eat healthy, Be healthy, Live lively!

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