Alcohol 'Protects Men's Hearts'
Drinking alcohol
every day cuts the risk of heart disease in men by more than a third,
a major study suggests.
The Spanish
research involving more than 15,500 men and 26,000 women found large
quantities of alcohol could be even more beneficial for men.
Female drinkers
did not benefit to the same extent, the study in Heart found.
Experts are
critical, warning heavy drinking can increase the risk of other
diseases, with alcohol responsible for 1.8 million deaths globally
per year.
The study was
conducted in Spain, a country with relatively high rates of alcohol
consumption and low rates of coronary heart disease.
The research
involved men and women aged between 29 and 69, who were asked to
document their lifetime drinking habits and followed for 10 years.
Crucially the
research team claim to have eliminated the "sick abstainers"
risk by differentiating between those who had never drunk and those
whom ill-health had forced to quit. This has been used in the past
to explain fewer heart-related deaths among drinkers on the basis
that those who are unhealthy to start with are less likely to drink.
Good cholesterol
The researchers,
led by the Basque Public Health Department, placed the participants
into six categories from never having drunk to drinking more than
90g of alcohol each day. This would be the equivalent of consuming
about eight bottles of wine a week, or 28 pints of lager.
For those drinking
little less than a shot of vodka a day for instance the risk
was reduced by 35%. And for those who drank anything from three
shots to more than 11 shots each day, the risk worked out an average
of 50% less.
The same benefits
were not seen in women, who suffer fewer heart problems than men
to start with. Researchers speculated this difference could be down
to the fact that women process alcohol differently, and that female
hormones protect against the disease in younger age groups.
The type of
alcohol drunk did not seem to make a difference, but protection
was greater for those drinking moderate to high amounts of varied
drinks.
The exact mechanisms
are as yet unclear, but it is known that alcohol helps to raise
high-density lipoproteins, sometimes known as good cholesterol,
which helps stop so-called bad cholesterol from building up in the
arteries.
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the rest of the article
November
20, 2009
Copyright
© 2009 BBC
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