Published: Wed, July 04, 2018
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Another Cup? More Coffee Could Be Linked to Longer Life Span

Another Cup? More Coffee Could Be Linked to Longer Life Span

In fact, drinking lots of coffee was associated with a lower risk of early death, including among people who downed eight or more cups per day.

Most were coffee drinkers, nearly one-third or 154,000 people drank two to three cups daily and 10,000 drank at least eight cups daily. But the existing literature, including meta-analyses aggregating dozens of coffee studies involving millions of people, do show some notable associations between people who report drinking more coffee and protective effects against cardiovascular disease (the number one killer of Americans) like heart disease and stroke.

But something people may not realize that is also beneficial when it comes to coffee, especially during these sweltering summer months, is that coffee does not dehydrate you.

The difference was around eight per cent to 16 per cent for coffee drinkers being less likely to die, with how many cups were consumed per day having little variation on the life boosting benefit. Context like the general recommendation from experts to stick to 400 mg of caffeine per day (about four cups of coffee) - too much of the stuff tends to lead to problems like insomnia or heartburn.

Among the most striking findings in the study: It didn't matter whether you drank caffeinated or decaffeinated coffee, and it didn't matter whether you drank instant or brewed coffee.

They found non-coffee drinkers were more likely to have died than those that drunk coffee.

That doesn't mean people should dramatically up their coffee intake, though: There isn't enough data to change the guidelines to include more cups of coffee, Loftfield said. "I just know that it has a bad rap", Mr Gardiner said.


Two to five cups, one cup per day, or less than one cup per day reduced early death rates by 12, eight and six percent, respectively.

Coffee has always been linked with combating heart disease, cancer, dementia, diabetes and depression.

The study from the U.S. National Cancer Institute used information from more than half a million British volunteers who provided blood samples and answered detailed health and lifestyle questions. Some prior studies had suggested that people with these gene variations could be at higher risk for cardiovascular disease, Loftfield said.

But this latest research is particular noteworthy because the team tapped into the data of 498,134 British people voluntarily registered with the UK Biobank genetics database, then logged deaths over a 10 year period.

He added: "Healthier coffee, free from sugar or syrup, should also be encouraged to optimize any health benefit".

But coffee drinkers in the study didn't have higher risks than non-drinkers of dying from heart disease and other blood pressure-related causes.

Drinking coffee could cut the risk of death even in those who struggle to metabolize caffeine, scientists believe. But Lichtenstein said loading coffee with extra fat and calories isn't healthy.

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