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  1. Serotonin: What Is It, Function & Levels - Cleveland Clinic

    Mar 18, 2022 · As a neurotransmitter, serotonin carries messages between nerve cells in your brain (your central nervous system) and throughout your body (your peripheral nervous system). These …

  2. What Does Serotonin Do? Neurotransmitter Function

    Jun 18, 2025 · Serotonin is a neurotransmitter that regulates mood, sleep, appetite, and cognitive functions. Though primarily found in the intestines, its presence in the brain affects emotional well …

  3. Serotonin - Wikipedia

    Serotonin (/ ˌsɛrəˈtoʊnɪn, ˌsɪərə -/) [6][7][8], also known as 5-hydroxytryptamine (5-HT), is a monoamine neurotransmitter with a wide range of functions in both the central nervous system (CNS) and also …

  4. Everything You Need to Know About Serotonin - Verywell Mind

    Nov 7, 2025 · Serotonin is a neurotransmitter responsible for regulating mood, digestion, sleep, and more. Learn how serotonin functions and how to balance it.

  5. Serotonin: What High and Low Levels Mean - Healthline

    Jul 3, 2024 · Mood: Serotonin in the brain is believed to regulate feelings, including happiness and anxiety. Selective serotonin reuptake inhibitors (SSRIs) are thought to help treat mood disorders by...

  6. Serotonin in the Brain: Functions, Effects, and Regulation

    Sep 30, 2024 · By influencing factors like neuronal growth and synaptic plasticity, serotonin plays a role in shaping our brain’s structure and function throughout our lives.

  7. Serotonin: Functions, deficiency, and how to boost

    Apr 18, 2024 · Serotonin is a natural chemical the intestines and brain produce. It helps send messages between nerve cells and affects mood, emotions, and digestion. The scientific name for serotonin is...

  8. Serotonin: Normal and Abnormal Hormonal Function

    Sep 2, 2025 · Serotonin, also known as 5-hydroxytryptamine (5-HT), is a neurotransmitter (chemical messenger) that helps regulate various functions in the brain and body. Researchers have linked too …

  9. Serotonin: Current Biology - Cell Press

    Dec 4, 2023 · In this primer, Ligneul and Mainen delve into the multifaceted nature of the brain’s serotonin system, detailing essential characteristics of serotonin signaling, its critical role in behavior …