
Coffee and Heart Atrial Fibrillation: Counterintuitive New Study
Physionic
Nov 15, 2025
Mindsip insights from this episode:
Limit coffee consumption to those with atrial fibrillation history for AFIB risk reduction
The study's finding that coffee reduces AFIB risk applies exclusively to people who already have a history of atrial fibrillation.
Track atrial fibrillation with wearables like Apple Watch
The study tracked atrial fibrillation events using a combination of clinical measures and day-to-day devices like the Apple Watch.
Consume coffee to lower atrial fibrillation risk
Contrary to intuition, a new study found that consuming coffee reduces the risk of atrial fibrillation events compared to those who abstained.
Reassess coffee benefits due to incomplete non-coffee group quitting
Because many participants in the non-coffee group failed to quit completely, the study's finding of coffee's benefit may actually be an underestimation.
Utilize caffeine to protect heart through adenosine receptor binding
Caffeine protects the heart by competitively binding to adenosine receptors, which stops adenosine from causing disruptions in the heart's electrical signaling.
Understand atrial fibrillation to reduce stroke risk
Atrial fibrillation is a 'funky heart rhythm' where the top chambers of the heart don't function uniformly, which can increase the risk of blood clots and stroke.
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