Many of the decisions that addicts make, particularly the harmful decisions, are impulsive. Impulsive behavior occurs when too much value is placed on immediate pleasure and not enough on long-term consequences. Desire dopamine overpowers the more rational parts of the brain. We make choices that we know are not in our best interest, but we feel powerless to resist. It’s as if our free will has been compromised by an overwhelming urge for immediate pleasure;