'Coffee can raise or reduce your chances of suffering a heart attack – it all depends on your genes, researchers suggest. People with a genetic makeup that causes them to metabolise caffeine more slowly have a 36% increased risk of heart attack if they drink two to three cups of coffee a day than people with the same gene who drink one cup or less a day, according to a new study. And if they drink more than four cups, this risk rises to 64%...' More