Too much coffee can be a latte for the heart to handle, with a new study linking over 400 milligrams of caffeine a day to an increased risk of cardiovascular disease even for otherwise healthy people.
“Regular caffeine consumption could disturb the parasympathetic system, leading to elevated blood pressure and heart rates,” explained lead study author Nency Kagathara, of Zydus Medical College and Hospital in Dahod, India.
Kagathara’s team measured the blood pressure and heart rates of 92 healthy adults after they performed a three-minute step test. Participants were 18 to 45 years old with normal blood pressure at the start of the experiments.
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