Are you an ardent coffee or tea lover, but advised to protect yourself from caffeinated beverages due to your heart disease? Cheer up, drinking as many as three glasses of coffee or tea a day is safe as well as reduce irregular heartbeat and stroke risk, a survey says.
A single mug of coffee contains about 95 mg of caffeine. It behaves as a stimulant on the nervous system and works to block the effects of adenosine — a chemical that triggers atrial fibrillation (AFib).
AFib is regarded as the common heart rhythm disorder, causes the center to get over rapidly and skip beats, in case neglected, causes strokes.
The results declare that caffeine consumption of around 300 mg every day might be safe for arrhythmic patients.
“You will find there’s public perception, often dependant on anecdotal experience, that caffeine is a common acute trigger for heart rhythm problems,” said lead author Peter Kistler, Director at Melbourne’s Alfred Hospital.
But, “caffeinated beverages like tea and coffee have long-term anti-arrhythmic properties mediated by antioxidant effects and antagonism of adenosine,” he added.
For the review, published from the journal JACC: Clinical Electrophysiology, the team analysed multiple population-based studies.
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A meta-analysis of 228,465 participants revealed that AFib frequency decreasing by 6 percent in regular coffee drinkers, plus an analysis of 115,993 patients showed a 13 per-cent reduced risk.
Another study of 103 post-heart attack patients who received generally 353 mg of caffeine on a daily basis showed improvement in pulse rate without significant arrhythmias — or abnormal heart rhythms, that cause and also the to get over too rapidly, slow or unevenly.
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However, by 50 percent studies, where patients drank at the very least 10 cups and nine glasses of coffee on a daily basis, showed an increased risk for ventricular arrhythmias (VAs) — an ailment when the lower chambers within the heart (ventricles) beat instantly.
On additional hand, patients with pre-existing heart conditions who consumed a couple of energy drinks — containing concentrated caffeine — every day reported palpitations within 24 hours.
