Any objects or things that make You feel happy will stimulate the brain to produce dopamine, the hormone maker happy. In normal circumstances, this will not lead to addiction. Just a sense of happy and satisfied in general.
But when You are experiencing addiction, objects that make You happy even stimulate the brain to produce dopamine excessive. The amount of dopamine that crossing the line will mess up the working of the hypothalamus, the part of the brain responsible for regulating emotion and mood thus making You feel very happy not unnaturally, excited, and confident excessive
