reward system

A reward system in the brain is a network that reinforces pleasurable or beneficial behaviors by releasing chemicals like dopamine. When you do something satisfying—such as eating, achieving a goal, or socializing—the system signals happiness and motivates you to repeat that behavior. It helps reinforce positive habits and guides decision-making by making certain activities feel rewarding. Essentially, it acts as an internal incentive mechanism, encouraging actions that promote well-being and survival.