Which neurotransmitter is most commonly associated with mood regulation?

Serotonin is most commonly associated with mood regulation due to its significant role in influencing emotional states, anxiety levels, and overall mood. It is often referred to as a mood stabilizer, and low levels of serotonin are linked with mood disorders such as depression and anxiety. This neurotransmitter is extensively studied in the context of mental health, particularly regarding the effects of antidepressant medications, which often aim to increase serotonin levels in the brain.

Moreover, serotonin is involved in various physiological functions beyond mood, including sleep, appetite, and digestion, making it a crucial chemical in maintaining overall well-being. Research has shown that therapies and medications targeting serotonin can lead to improvements in mood regulation for individuals with mood disorders, highlighting its importance in mental health practices.