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Researchers Find No Link between Habitual Coffee Consumption and Arrhythmia:
In a large, prospective, population-based community cohort study of 386,258 coffee drinkers, greater amounts of habitual coffee consumption were inversely associated with a lower risk of cardiac arrhythmia; in fact, each additional daily cup of coffee was associated with a 3% reduced risk of developing an arrhythmia; these associations were not significantly modified by genetic variants that affect caffeine metabolism.
“Coffee is the primary source of caffeine for most people, and it has a reputation for causing or exacerbating arrhythmias,” said Professor Gregory Marcus, a researcher in the Division of Cardiology at the University of California, San Francisco.
“But we found no evidence that caffeine consumption leads to a greater risk of arrhythmias.”
“Our population-based study provides reassurance that common prohibitions against caffeine to reduce arrhythmia risk are likely unwarranted.”
[...] The higher amounts of coffee were actually associated with a 3% reduced risk of developing an arrhythmia.
“Only a randomized clinical trial can definitively demonstrate clear effects of coffee or caffeine consumption,” Professor Marcus said.
[...] “Coffee’s antioxidant and anti-inflammatory properties may play a role, and some properties of caffeine could be protective against some arrhythmias.”
[Bolding in original removed.]
Journal Reference:
Eun-jeong Kim, Thomas J. Hoffmann, Gregory Nah, et al. Coffee Consumption and Incident Tachyarrhythmias, JAMA Internal Medicine (DOI: 10.1001/jamainternmed.2021.3616)
(Score: 2, Insightful) by Anonymous Coward on Thursday July 22 2021, @05:50AM (5 children)
Caffeine is terrible whether it causes that particular problem or not. One of the significant but often overlooked health problems in developed countries is poor sleep. While overscheduling and late night activity contribute, caffeine is a major contributor as well. With a half life of about six hours, drinking any coffee after noon, more than one cup total a day, or a soda with dinner ensures that you will be trying to sleep while under the effects of a stimulant. On top of that, the body builds up a tolerance, so most regular coffee drinkers suffer the negative effects without any of the benefits.
It's not as bad as tobacco, but it's not something that anyone should use.
(Score: 0) by Anonymous Coward on Thursday July 22 2021, @06:17AM (1 child)
Just use it after you wake up. You can get it inside you very quickly if you use a pill.
(Score: 0) by Anonymous Coward on Friday July 23 2021, @08:02AM
Even quicker with lube.
(Score: 2) by istartedi on Thursday July 22 2021, @06:29AM (2 children)
Caffeine's half-life is not so simple [caffeineandyou.com] and may be compounded by so-called "entourage effects" of other substances in the cup influencing the way the drug is metabolized. In my own personal experience, a cup of coffee at 2PM or even as late as 4PM does not interfere with my sleep, whereas tea in the afternoon seems to have an effect that drags on long enough to cause sleep interference. It feels like coffee comes on stronger and drops for me, whereas tea builds up and lingers.
Appended to the end of comments you post. Max: 120 chars.
(Score: 1, Funny) by Anonymous Coward on Thursday July 22 2021, @04:41PM
I get a buzz off the first cup but after I pick up the crack pipe I can barely feel it any more.
(Score: 0) by Anonymous Coward on Sunday July 25 2021, @06:18AM
It could be that since coffee is a stronger stimulant the resulting crash begins to have a stronger effect sooner.