Coffee may increase longevity. Coffee lovers have one more reason to celebrate: several studies have found that consistent coffee consumption lowers death rates from a wide variety of causes. While many may assume only a certain amount is beneficial, it turns out that the more cups you drink, the greater the result. In an American study that took place over 16 years, participants who claimed to drink four or more coffee drinks daily, were linked to an 18 percent lowered chance of death than the others. In a European study, researchers studied 520,000 people in 10 different counties over 16 years and they found similar results. In the U.S. study, researchers found that decaffeinated coffee provided the same benefits as the caffeinated kind, which means the longevity potion doesn’t necessarily lie in the caffeine.