5-HT (Serotonin) Often referred to by its chemical name 5-hydroxytryptamine, 5-HT is more commonly known as serotonin. A vital neurotransmitter in the brain, serotonin plays a pivotal role in mood regulation, appetite, sleep, and several other physiological processes. It’s synthesized in the body from the amino acid tryptophan, primarily found in the gut and brain.
