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Heavy coffee drinkers with high blood pressure had higher risk of death: Study

Heavy coffee drinkers with high blood pressure had higher risk of death: Study

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  • People with very high blood pressure who drink a lot of coffee are more likely to die from heart problems, according to a new study.
  • But drinking coffee has no effect on people with normal or mildly high blood pressure.
  • Previous research has found that drinking one to two cups of coffee a day can improve heart health.

Coffee, usually considered to be heart healthy drink when consumed in moderation, it can be harmful to people with very high blood pressure.

Two or more cups of coffee a day are associated with a higher risk of death from heart problems in people with very high blood pressure, according to a study published Wednesday in the Journal of the American Heart Association.

Compared to non-drinkers, people who drank two or more cups of coffee were about twice as likely to die from heart problems in the study.

Although heavy coffee drinking is more risky for people with severe hypertension, or high blood pressure, the same trend was not seen in people with normal or mildly high blood pressure. The authors of the study are a group of Japanese researchers who analyzed the health data of 18,609 participants aged 40 to 79.

Consumption of green tea in any amount had no effect on heart health, according to the study.

The study is the first to find a link between coffee drinking and death from heart disease in people with very high blood pressure, lead study author Hiroyasu Iso told the American Heart Association.

Blood pressure is measured by the pressure in your arteries both when your heart is beating (systolic blood pressure) and when your heart is at rest (diastolic blood pressure). High blood pressure occurs when the systolic blood pressure is at least 130 millimeters of mercury (mm Hg) above the diastolic blood pressure of at least 80 mm Hg.

The study authors defined “very high” blood pressure as at least 160 mm Hg over at least 100 mm Hg.

“These findings may support the proposition that people with severe high blood pressure should avoid drinking excessive coffee,” Iso said in the AHA exemption.

AHA doesn’t have an official recommendation on how much coffee to drink, the group said one to two cups a day “doesn’t appear to be harmful” website.

Previous research has shown that moderate caffeine consumption — about one to three cups a day — may benefit heart health.

A paper from last year, which looked at three studies, including one that followed 21,000 adults for at least 10 years, found that drinking two cups of coffee a day could reduce the risk of heart failure by 30%. Previous research has also found that consuming about three cups of Joe a day can reduce the risk of heart disease, Sarah Lindberg of Insider reported.

Drinking coffee is even believed to prevent early death, as a major paper from earlier this year that analyzed the health of 171,000 UK residents found that regular unsweetened coffee drinkers were 16 to 21% less likely to die than their non-java peers.

But more recent studies have shed light on the potentially negative effects of coffee. A recent article in the Journal of the American Medical Association found that drinking coffee during pregnancy can affect the child’s height when he grows up.


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