New Delhi, July 22 -- is it good for you, bad for you, or simply a habit too entrenched to examine honestly? The American Heart Association, in a formal scientific statement published this week in the journal Circulation, has now provided an answer as authoritative as the institution gets.

daily coffee was associated with a 39 percent reduction in recurrence risk. The AHA framed these findings as the basis for a formal clinical guidance update rather than a preliminary signal requiring further study.

"Coffee is potentially linked to lower risks of type 2 diabetes, stroke, and heart failure," said Dr. Jennifer Miao, a cardiologist and ABC News Medical Unit Fellow, summarizing the statement's central finding. The most important qualificat...