Study: 3 Cups of Coffee a Day Could Be Good for Your Heart

Lots of people have a love affair with their morning coffee, but if you’re the person who reaches for three or more cups per day you might be getting a health benefit. Researchers from the Baker Heart and Diabetes Institute in Melbourne, Australia analyzed a series of studies looking at caffeine intake and its effects on atrial and ventricular heart arrhythmias. They found that once in the body, caffeine blocks the effects of adenosine– a chemical that can increase the risk of abnormal heart rhythms. Researchers suggest that drinking up to 300mg of caffeine a day– the equivalent to three cups of coffee– should be safe for patients with irregular heartbeats, but add that anyone with a pre-existing heart condition should speak to their doctor before increasing the amount of tea and coffee they drink, and that energy drinks should be avoided completely.