Drinking two cups or more of coffee a day can put people with high blood pressure at twice the risk of dying from stroke, heart attacks, and other cardiovascular disease, according to a recent study in the Journal of the American Heart Association.
As reported by Medical Daily recently, different findings were experienced by those who drank green tea or only one cup of coffee every day.
For study purposes, the research team examined data from 18,609 participants aged 40 -79 years. Participants were asked to fill out questionnaires related to lifestyle, diet, and medical history. They also underwent a medical examination.
"Heavy coffee consumption is associated with an increased risk of death from cardiovascular disease among people with severe hypertension, but not in people without hypertension and with level one hypertension," the researchers said.
In contrast, consumption of green tea is not associated with an increased risk of death from cardiovascular disease in all categories of blood pressure.
Previous research showed people with heart attacks but drinking a cup of caffeinated coffee every day could lower their risk of death.
This method is also believed to help prevent heart attacks and strokes in healthy adults.
However, other studies suggest that too much coffee can increase blood pressure and even cause heart rate and anxiety, according to the American Heart Association.
Both coffee and tea contain caffeine but in different levels. Live green or black tea 8 ounces contains 30 to 50 mg of caffeine.
On the other hand, the same volume of coffee contains 80 to 100 mg of caffeine, according to the Food and Drug Administration.
Iso, director of the Institute for Global Health Policy Research at the National Center for Global Health and Medicine in Tokyo, highlighted that the study's findings should encourage people with severe hypertension to avoid drinking excessive coffee.
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