Two cups of coffee a day can reduce the risk of heart failure (but five are bad for you)

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. 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. 

Source  - Daily Mail