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More coffee could lead to longer life, research shows

| There's new evidence that coffee can lead to a longer life, with two studies from the U.S. and Europe showing similar results. The American study found people who drink one cup of coffee a day have a 12 percent lower risk of dying. Those who have two or three cups have an 18 percent lower risk. Dr. Tara Narula joins "CBS This Morning" to discuss the findings.