Dopamine & The Neuroscience of Bad Habits: Dr. Nora Volkow | Learning, Brain & Cognitive Fitness |

Just because our brains have been altered by addiction, doesn't mean we're destined to fall into the same habits. In the 60 Minutes video, Volkow tells us that if it were so easy to just say "no," then we wouldn't have drug addiction or obesity. There's something going on in the brains of addicts where they literally lose the ability for self-control. To get more specific, dopamine is one of the main chemicals regulating the pleasure center of the brain. At the most basic level, it regulates motivation -- it sends signals to receptors in the brain saying, "This feels good!" (Video)