A new study suggests that drinking coffee significantly reduces our skin-cancer risk. There’s a raft of other research that’s piling up evidence that regular cups of joe—six-ounce servings packed with antioxidants, polyphenols, and other health-boosting chemicals—can prevent everything from diabetes to depression to cirrhosis of the liver to stroke. Intracranial aneurysms, not so much. Scared of superbugs? Pour yourself another cup.