If you've ever been in love, you've probably at least considered classifying the feeling as an addiction. And guess what: You were right. As it turns out, scientists are discovering that the same chemical process that takes place with addiction takes place when we fall in love.
Love is a chemical state of mind that's part of our genes and influenced by our upbringing. We are wired for romance in part because we are supposed to be loving parents who care diligently for our helpless babies.

More on love here.