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Thursday 27th October 2016

Hypertension link to coffee

3rd September 2007

A study in Finland has shown that there may be a link between drinking coffee and the likelihood of beginning antihypertensive drug treatment.


The study involved 24,710 Finnish subjects between the ages of 25 and 64 years with no history of antihypertensive drug treatment, coronary heart disease, or stroke.

The study lasted just over 13 years, during which time participants completed questionnaires about their coffee consumption. During the lifetime of the study, 2,505 subjects started antihypertensive drug treatment.

The multivariate-adjusted hazard ratios for antihypertensive drug treatment associated with the amount of coffee consumed daily (0 to 1, 2 to 3, 4 to 5, 6 to 7, and at least 8 cups) were 1.00, 1.29, 1.26, 1.24, and 1.14, respectively, showing what appeared to be a mildly increased risk of developing high blood pressure in those who drank some coffee.

Only two studies have investigated the link to date, and both sets of results were inconclusive, researcher Gang Hu of the National Public Health Institute in Helsinki said.

But, wrote Hu and colleagues in the August issue of the American Journal of Clinical Nutrition, the actual quantity of coffee consumed did not appear to affect the likelihood of developing hypertension, or high blood pressure.

Researchers found no relevant increased trend in those who consume one cup, and those who drank more than eight cups per day.

"Even though the risk of hypertension associated with coffee consumption was relatively small, it may have some public health importance because coffee is the most consumed drink, other than water, and hypertension is a major health problem in the world," the team concluded.

But they said the link needed further investigation because coffee consumption has also been shown to reduce the risk of getting type 2 diabetes.

The relationship, they said, between coffee drinking and cardiovascular disease risk, was complicated, and further studies were needed.


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Wednesday 12th September 2007 @ 17:35

As the dose of coffee doesn't affect the incidence of hypertension, perhaps the researchers need to go beyond the drink to the reasons why people drink it People who need a stimulant could be candidates for hypertension due to stress from poor sleep, using stimulants instead of food as an artificial energy source or living under other stressful conditions perhaps. Is there a correlation between coffee drinking and other hypertensive triggers, such as smoking, overwork, etc.? What research may shed some light on any of these connections?

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