Two cups of coffee a day can reduce the risk of heart failure (but five are bad for you)
00:15 GMT, 27 June 2012
Two mugs of coffee a day could help keep the heart healthy. A study has linked the drink with a lower risk of heart failure.
With up to 40 per cent of those affected dying within a year of diagnosis, heart failure has a worse survival rate than many cancers.
The latest research suggests that regularly drinking moderate amounts of coffee can cut the odds of cardiac trouble – though too much could be counter-productive.
Coffee may protect against heart failure by reducing the chance of developing diabetes, said scientists
Crunching together the results of five
previous studies, involving almost 150,000 men and women, showed that
those who enjoyed one or two mugs of coffee a day were 11 per cent less
likely to develop heart failure than those who had none.
Heart attack survivors gained as much benefit as those with healthy hearts.
But drinking five or more mugs a day appeared to be bad for the heart, the journal Circulation Heart Failure reports.
Researcher Dr Murray Mittleman, of the
Beth Israel Deaconess Medical Center in Boston, said: ‘As with so many
things, moderation appears to be the key here too.’
The researchers aren’t sure why coffee
seems to cut the odds of heart failure, in which the organ, weakened by
a heart attack or disease, struggles to pump blood around the body.
They say it may be because the drink
reduces the likelihood of high blood pressure and of diabetes – both of
which boost the odds of heart failure.
Dr Mittleman said: ‘It stands to
reason that reducing one’s odds of developing either one of them, in
turn, reduces one’s chance of heart failure.’
Colleague Elizabeth Mostofsky added: 'This is good news for coffee drinkers.'
Other recent research to hearten coffee drinkers includes a study that credited the drink with helping people live longer.
The US government-funded researchers found the more coffee you drink, the less likely you are to die from a number of different ailments.
These include heart disease, respiratory disease, stroke, injuries, accidents, diabetes and infections, but not cancer.
It is also known that some people inherit genes that make them more reliant on caffeine than others.
Those with the 'caffeine addict' genes, need to drink more coffee to get the same buzz.