For many, caffeine is the ultimate pick-me-up. Whether it's a cup of coffee, a can of energy drink, or a quick espresso shot, it fuels the day and keeps us moving. But even though caffeine is a common ...

Caffeine offers some real health benefits—but not if you go overboard. Here’s how coffee, energy drinks, and other caffeine products can affect your health. America's favorite drug is caffeine, ...