NNPA NEWSWIRE — To analyze the outcomes of drinking caffeinated coffee, researchers categorized consumption as 0 cups per day, 1 cup per day, 2 cups per day and at least 3 cups per day. Across the three studies, coffee consumption was self-reported, and no standard unit of measure were available. In all three studies, people who reported drinking one or more cups of caffeinated coffee had an associated decreased long-term heart failure risk.