Coffee drinkers, delight. A good cup of joe, or two, or three, won't hurt the heart, Harvard researchers reported Thursday.

In fact, coffee with caffeine, the often maligned chemical that gives the brew its kick, may turn out to be easier on the heart than the decaffeinated variety."It's amazing how coffee has a bad name, when the harder one looks at health hazards, the more difficult it is to find adverse effects," says Dr. Walter Willett of the Harvard School of Public Health.

His research, part of a huge study of healthy people, shows that those who drink several cups of ordinary caffeinated coffee every day do not raise their risk of heart attacks.

The research was based on a survey of the coffee-drinking habits of 45,589 men. It was published in Thursday's New England Journal of Medicine.