Many people have a soft spot for coffee, but few people are aware of some of the drawbacks of overdrinking coffee. The caffeine contained in coffee has the effect of exciting the central nervous system, and the excessive excitement of the central nervous system is a great burden on the myocardium. A survey of coffee and heart disease in Boston, USA, showed that excessive coffee drinking may be one of the important causes of myocardial infarction. Compared with people who do not drink coffee at all, the proportion of people with 1-5 cups of coffee a day suffering from myocardial infarction It is 1.34 times that of those who do not drink.
In sharp contrast, a new study in Japan showed that drinking green tea can reduce the risk of myocardial infarction. Subjects who drank one or more green teas a day were significantly less likely to have a myocardial infarction than those who did not. Studies have shown that regular consumption of green tea can protect against myocardial infarction.