The regulation of sleep, mood, and appetite involves brain systems using the neurochemical

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Serotonin is a neurotransmitter involved in regulating sleep, mood, and appetite. It is commonly referred to as the "feel-good" neurotransmitter as it can improve mood and reduce anxiety. Serotonin plays a role in regulating appetite by signaling feelings of fullness after eating. Low levels of serotonin have been linked to depression and certain sleep disorders.

The Regulation of Sleep, Mood, and Appetite Involves Brain Systems