addiction neurobiology

Addiction neurobiology focuses on how substances or behaviors affect the brain's reward system. When we engage in activities that bring pleasure, like using drugs or indulging in certain behaviors, the brain releases chemicals like dopamine, creating feelings of enjoyment. Over time, repeated exposure can change brain circuitry, making it harder to feel pleasure from everyday activities and increasing the desire to use the substance or engage in the behavior. This can lead to compulsive actions despite negative consequences, as the brain's pathways reinforce the addictive behaviors, often overriding rational decision-making.