Which neurotransmitter is often associated with mood regulation?

Serotonin is the neurotransmitter most commonly associated with mood regulation due to its significant role in the brain's mood-enhancing circuits. It contributes to feelings of well-being and happiness and is considered vital in managing mood disorders such as depression and anxiety. Low levels of serotonin have been linked to mood disturbances, making it a key target in various treatment approaches, including medications like selective serotonin reuptake inhibitors (SSRIs), which aim to increase serotonin levels and improve mood.

While other neurotransmitters do play roles in influencing mood and emotional states, serotonin’s specific impact on mood stabilization and its association with various mood disorders highlight its primary importance in this context.