Drinking coffee may lift your mood and boost your cognitive performance, even without the added buzz of caffeine . A new study has compared caffeinated and decaffeinated coffee and found that they both have potential perks for the gut, mood, and behavior. Researchers at University College Cork in Ireland led a study that compared some health markers and the perceived well-being of 31 coffee drinkers, who drank three to five cups a day, with 31 participants who did not drink coffee. At the start