What is serotonin and what roles does it play in the body?
Serotonin is a biogenic amine that functions as both a hormone and a neurotransmitter, depending on where it is secreted in the body. It is primarily produced in the gastrointestinal tract and plays a crucial role in regulating mood, sleep, and appetite. As a neurotransmitter, serotonin is involved in transmitting signals between neurons in the brain, while as a hormone, it can influence various physiological processes throughout the body.
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