This article discusses the differences between "addiction and enthusiasm", something I myself want to research as well. The author says, "the hallmark of addiction is the tendency for the relationship between acting and finding satisfaction to unravel." What neurological features cause this? And what is different from one individual's brain to another to cause addiction in some, but not all?
Humans are emotional beings. We feel things - sadness, joy, stress, disappointment. Sure, we have names for the plethora of feelings we experience in our lifetime, but what do they mean? We often ask one another, "How are you feeling?" But the more difficult question is "why are you feeling this way?" The answer to this second question is found in our brains' inner-workings.
Most of us have at one time or another thought one of the following: "How can I be more creative?" "I'm just not creative enough." "Why are others more creative?" or something where you probably questioned your creative brain.