New research suggests coffee increases life expectancy!

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The benefits of drinking coffee

Previous USC studies have shown that coffee consumption is associated with a reduced risk of several types of cancer, such as diabetes, liver disease, Parkinson's disease, type 2 diabetes and other chronic diseases.

Setiawan also drinks one or two cups of coffee a day. He pointed out that the positive impact of drinking coffee is far-reaching because of the large number of people who enjoy or rely on coffee every day.

Setiawan stressed: "Coffee contains a large number of antioxidants and phenolic compounds, which play an important role in cancer prevention. Although the study does not show exact causality or indicate which chemicals in coffee may have this "effect", it is clear that drinking coffee can be considered a very healthy lifestyle. "

According to the American Coffee Association, about 62 percent of Americans drink coffee every day, an increase of 5 percent over 2016.

As a research institution, USC has scientists from different disciplines working to find a cure for cancer.

Keck Medical School and the USC Comprehensive Cancer Center jointly manage a database called the Los Angeles Cancer Surveillance Program, which provides scientists with cancer data for different populations.

Researchers at the USC Comprehensive Cancer Center found that drinking coffee reduces the risk of colorectal cancer, but long-term consumption of hot coffee or drinks may lead to esophageal cancer.

In addition, last year the World Health Organization announced that drinking coffee can reduce the risk of liver and uterine cancer.

Recently, scientists have found that coffee drinkers seem to live longer. Coffee intake is associated with the risk of death from heart disease, cancer, stroke, diabetes and kidney disease among African-Americans, Latinos and whites.

Compared with those who did not drink coffee, people who drank one cup of coffee a day had a 12% lower mortality rate. For people who drank two to three cups of coffee a day, the death rate was reduced by 18%.

Setiawan, lead author of the study, said: "We are not sure that drinking coffee will prolong your life, but we can confirm that there is a link between coffee drinking and longevity. If you like coffee, please insist; if you don't like coffee, you can have a try. "

The study, published July 11 in the journal Annals of Internal Medicine, was conducted by the University of Hawaii Cancer Center and the Keck School of Medicine.

So far, there is little data on the correlation between coffee consumption and mortality in the United States and elsewhere, the researchers show. This kind of survey is important because lifestyle and disease risk vary widely between races, and the findings of one group may not necessarily apply to others.

Since the association exists in four different races, Setiawan points out that the findings can certainly be applied to other groups.

Research data

In the study, Setiawan and colleagues recruited 185,855 volunteers, including African Americans (17%), native Hawaiians (7%), Japanese Americans (29%), Latinos (22%) and whites (25%). All the volunteers were asked to answer questionnaires about diet, lifestyle, family and personal medical history.

In addition, volunteers were required to truthfully report their coffee intake habits and update them every five years. They also reported whether they drank caffeinated or decaffeinated coffee, with an average follow-up period of 16 years.

Sixteen percent of the participants reported that they did not drink coffee, 31 percent drank one cup a day, 25 percent drank two to three cups a day, and 7 percent drank four or more cups a day. The remaining 21% had irregular coffee intake habits.

Of the 58397 participants in the study, about 31 per cent died. Cardiovascular disease (36%) and cancer (31%) are the main killers.

The data were also adjusted for age, sex, race, smoking habits, education, pre-existing diseases, physical activity and alcohol consumption.

Previous studies by Setiawan have found that coffee reduces the risk of liver cancer and chronic liver disease. Currently, she is studying how coffee is associated with a particular cancer risk.