What is caffeine dependence? "When people use the term caffeine addiction, that is incorrect. Technically, caffeine use can result in a physical dependence, but not an addiction," says Cherian.

But the withdrawal is only temporary. And most experts don't think caffeine addiction is a big problem. It's not like you're going to need rehab. Does decaf mean it has no caffeine? Not quite.

However, some people find themselves extremely dependent on coffee due to its caffeine content and that results in addiction.