The term "pleasure centers" refers to specific areas in the brain that are responsible for experiencing pleasure and reward. These regions release neurotransmitters, such as dopamine, which create feelings of happiness or euphoria when activated by certain stimuli, like food, sex, or drugs. The concept of "pleasure centers" is often used in the context of addiction, where individuals may seek out these activities or substances to trigger the release of neurotransmitters and experience a pleasurable sensation.