Drinking coffee may reduce the risk of death and prolong life

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Drinking coffee may reduce the risk of death and prolong life, according to two large studies published in the Chronicle of Internal Medicine on the 10th.

The first study was carried out jointly by researchers from the International Agency for Research on Cancer and Imperial College. Using 16-year follow-up data from the European prospective Cancer and Nutrition Survey of more than 520000 people in 10 European countries, they compared the mortality rates of coffee drinkers and non-coffee drinkers. This is by far the largest number of participants in the health impact study of coffee drinking.

The results showed that there was a link between high coffee consumption and low mortality, with the most significant reduction in mortality among people who drank three or more cups of coffee a day. Moreover, people who drink more coffee are less likely to die from circulatory and digestive diseases.

In the second study, researchers at the University of Southern California used data from a multi-ethnic cohort study to analyze the health effects of coffee drinking on people of different races. The multi-ethnic cohort study followed the health of 185000 Americans for 16 years, including African-Americans, Japanese-Americans, Hispanics, native Hawaiians and whites.

Coffee drinkers had a lower risk of dying from diseases such as heart disease, cancer, stroke, diabetes, respiratory diseases and kidney disease, the study found. This benefit applies to people of different races, as well as to normal coffee and decaffeinated coffee.

The researchers pointed out that the finding that drinking coffee can reduce the risk of death among different ethnic groups is important because of the different lifestyles and disease risks of different ethnic groups.

A commentary issued by the Chronicle of Internal Medicine said that the protective effect of coffee is biologically reasonable. Polyphenols and other bioactive substances in coffee have antioxidant effects, which are related to the reduction of insulin resistance and inflammation. However, these benefits do not come from caffeine.

The commentary stressed that although it is too early to advise people to drink coffee to reduce mortality or prevent chronic diseases, adults drinking three to five cups of coffee a day, or up to 400 milligrams of caffeine a day, may not have adverse effects on health and can therefore be included as part of a healthy diet.

Coffee, tea and cocoa are ranked as the three biggest drinks in the world. It is estimated that the world drinks more than 2.25 billion cups of coffee every day. Given the widespread nature of coffee consumption, it is important to fully understand its impact on health.