Regular Coffee Consumption Could Lead to a Longer Life

Two large studies show potential benefits of coffee; one looked at consumption in all races
Two large studies show potential benefits of coffee; one looked at consumption in all races

HealthDay News — Drinking coffee is linked to longevity, according to two studies published online July 11 in the Annals of Internal Medicine.

In one study, Wendy Setiawan, an associate professor of preventive medicine at the University of Southern California's Keck School of Medicine in Los Angeles, and colleagues used data on 185,855 middle-aged and older Americans of all races. At the study's start, in the 1990s, people reported on their diet and lifestyle habits, including coffee drinking. During the next decade, 58,397 study participants died.

The researchers found individuals who consumed 1 or more cups of coffee a day had lower total mortality after adjustment for smoking and other potential confounders (one cup per day: hazard ratio [HR], 0.88; two to three cups per day: HR, 0.82; four or more cups per day: HR, 0.82). The team found similar trends between caffeinated and decaffeinated coffee, and a consistent pattern for African-Americans, Japanese-Americans, Latinos, and whites. 

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The second study had similar findings. This study included 521,330 Europeans. During the investigation, 41,693 died. People who drank about 3 cups of coffee (23 to 29 ounces) per day were 7 to 12% less likely to die over the next 16 years, compared with non-drinkers (men: HR, 0.88; women: HR, 0.93).

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