What really is addiction?

People can be addicted to many things, almost anything I'd say. It could be one precise object/item/habit or multiple ones. The habit or habits could be simple or they could be intricate. Simple everyday things like chewing gum, candy and caffiene (especially for minors). Further for the more matured human sex could be a most addictive behavior in tween years, and can be quite confusing despite being a teen or an adult.