(Kayla McKiski/ HealthDay) — From cappuccinos to cold brew, coffee is a morning must for many Americans, but is it healthy and how much is too much?
A University of South Australia study suggests a couple of cups to start your day probably won’t hurt — and may even be good for you. But drinking six or more cups of coffee a day can increase your risk of heart disease by up to 22%, the researchers found.
About one in four deaths in the United States is due to heart disease, according to the U.S. Centers for Disease Control and Prevention. Heart disease is the leading cause of death worldwide.
That’s why Elina Hypponen and Ang Zhou of the Australian Center for Precision Health in Adelaide set out to discover the point when too much caffeine causes high blood pressure, a key heart disease risk factor. The tipping point: Six 8-ounce cups — each containing 75 milligrams (mg) of caffeine. (…)