Which neurotransmitter is most commonly associated with mood regulation?

Serotonin is most commonly associated with mood regulation because it plays a crucial role in the modulation of mood, emotion, and overall feelings of well-being. Low levels of serotonin are often linked to mood disorders such as depression and anxiety. This neurotransmitter influences various psychological processes, including mood stability, happiness, and even appetite and sleep, which are all tightly regulated in individuals experiencing mental health issues.

Research has shown that increasing serotonin levels can have a positive impact on mood, which is why many antidepressant medications, particularly selective serotonin reuptake inhibitors (SSRIs), target this neurotransmitter. The focus on serotonin in the context of mood regulation has led to its recognition as a key player in understanding and treating mood-related disorders.