The study says drinking moderate amounts of coffee every day may help avoid clogging arteries.
Drinking three to five cups of coffee a day may help people avoid clogging arteries, foreign media reported Wednesday. Arterial occlusion is an important factor leading to cardiovascular disease.
Researchers in South Korea surveyed more than 25000 male and female professionals whose work units gave them regular health check-ups.
After analyzing the medical scan reports of these respondents, the researchers found that those who drank three to five cups of coffee a day had fewer early signs of cardiovascular disease.
The debate over whether coffee can help prevent cardiovascular disease has been going on in recent years.
Some studies have equated coffee drinking with elevated cholesterol and blood pressure, suggesting that it is also one of the risk factors for the heart. But other studies have found that coffee may have some protective effect on the heart.
In any case, both views are inconclusive, and the latest findings only add to the debate.
In particular, researchers in South Korea looked at the coronary arteries in the health scans of more than 25000 professionals for signs of early disease in the organ that has always supplied blood to the heart.
The cause of coronary heart disease is that the coronary artery is blocked by fat gradually accumulated in the blood vessels.
None of the scans of the more than 25000 respondents showed external signs of heart disease, but 1/10 of them had significant calcium deposits in their coronary arteries.
The researchers compared the scanned images with the amount of coffee they drank each day, taking into account factors including smoking, exercise and a family history of heart disease.
The results showed that people who drank three to five cups of coffee a day had fewer calcium deposits in their arteries than those who did not drink coffee or drank more than five cups of coffee a day.
Coffee contains caffeine, a central nervous system stimulant, and many other compounds, but it is not clear whether these compounds are good or harmful to human health.
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