For all the
studies, the researchers used data from UK Biobank, which follows the health
outcomes of more than 500,000 people for at least 10 years
New York: Contrary to worries
among some doctors and the public, drinking coffee may protect your heart instead
of causing or worsening heart problems, find a new study.
According to three research
abstracts, drinking two to three cups of coffee daily has been associated with
a 10 per cent to 15 per cent lower risk of getting heart disease, heart failure
or a heart rhythm problem, or dying early for any reason, CNN reported.
"We found coffee drinking
had either a neutral effect -- meaning that it did no harm -- or was associated
with benefits to heart health," said researcher Peter M. Kistler from the
University of Melbourne.
For all the studies, the
researchers used data from UK Biobank, which follows the health outcomes of
more than 500,000 people for at least 10 years.
When joining the registry,
participants reported that their coffee consumption fell on a range from up to
a cup to six cups or more daily.
The authors of the current
research wanted to examine the relationship between coffee drinking and heart
rhythm problems (arrhythmias); cardiovascular disease, including coronary heart
disease, heart failure and stroke; and total and heart-related deaths among
people with and without heart disease.
The first study focused on
more than 382,500 adults who did not have heart disease and was age 57 on
average. Participants who drank two to three cups of coffee daily had the
lowest risk for later developing the heart problems the study focused on, the
researchers found.
People who drank roughly one
cup of coffee per day had the lowest risk of having a stroke or dying from
cardiovascular disease.
Another study looked into the
relationships between different types of coffee -- caffeinated ground,
caffeinated instant and decaffeinated -- and the same health outcomes. Whether
the decaf coffee was ground or instant wasn't specified.
Drinking one to five cups of ground or instant coffee a day was linked with lower risks of having arrhythmia, heart disease or failure, or stroke. Drinking two to three cups of any type of coffee every day was associated with a lower risk of dying early or from heart disease.
Participants analysed in a third study were those who already had arrhythmia or a type of cardiovascular disease. For people with cardiovascular disease, no level of coffee intake was found to be linked with developing arrhythmia.
Of the adults with arrhythmia, coffee intake -- especially one cup per day -- was associated with a lesser risk of premature death.
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