Japanese medical experts have discovered that if patients with high blood pressure consume two or more cups of coffee per day, the risk of them dying from cardiovascular disease will double.
A group of Japanese medical researchers led by Hiroyasu Iso, director of Institute for Global Health Policy Research, Bureau of International Health Cooperation, have been following nearly 19,000 people for 19 years since 1990 and recorded 842 cardiovascular-related deaths.
After eliminating people with cancer risks, the research team selected 18,609 participants, including 6,574 men and 12,035 women.
The selected participants were divided into five blood pressure groups: the best to regular blood pressure group (lower than 130/85 mm HG), the normal to high blood pressure group (between 130-139/85-89 mm HG), level I high blood pressure group (between 140-159/90-99 mm HG), level II high blood pressure group (between 160-179/100-109 mm HG) and level III high blood pressure group (higher than 180/110 mm HG)….