A great description of addiction:
If you never find your drug of choice, a dirty band-aid to the gaping wound of neurochemical imbalance, then perhaps you’ll never find addiction. For most of us, it isn’t worth the experiment to know. For others, it starts out innocently, by becoming too reliant on pain pills prescribed by a doctor after an accident. Would you be “better” with a neurochemical enhancement? I’ve been to rehab facilities and have seen good people lose their livelihoods, children and everything they hold dear. And thus, I ask: how could you say it’s not chemistry? How could you say it’s choice? Choice to feel robbed of free will? Choice to be dependent?
For addicts, it’s never over. A structure in the reptilian or old brain, the amygdala, causes the addict to crave a drug when she recognizes people, places, situations or patterns with which she’s previously used. It’s instinct, without conscious thought. Consider this: if you’re drowning, you’ll push up for air. So will an addict, only her air is a drug.