Researchers have found that people who drink five or more cups of coffee a day have a risk of heart disease 2  5 times the average after corrections are made for age and smoking habits
Members of the research team say that, on the basis of their findings, they now limit their own daily coffee intake to two cups
The study did not collect information that would show whether variations in level of coffee consumption are directly related to variations in level of stress, a major causal factor in heart disease.