
Serotonin: What Is It, Function & Levels - Cleveland Clinic
Serotonin is a chemical that carries messages between nerve cells in the brain and throughout your body. Serotonin plays a key role in such body functions as mood, sleep, digestion, …
Everything You Need to Know About Serotonin - Verywell Mind
Nov 7, 2025 · Serotonin is a neurotransmitter important for mood, digestion, and sleep. You can increase serotonin levels naturally through exercise and sunlight. Serotonin is a naturally …
Serotonin - Wikipedia
SSRI's function is to block the reuptake of serotonin, making more serotonin available to absorb by the receiving neuron. Animals have been studied for decades in order to understand …
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 …
Serotonin | Definition, Functions, & Facts | Britannica
Nov 29, 2025 · serotonin, biological molecule that acts as a potent vasoconstrictor and neurotransmitter. Serotonin is derived from the amino acid tryptophan. It occurs in the brain, …
Serotonin: What High and Low Levels Mean - Healthline
Jul 3, 2024 · Serotonin sends signals between nerve cells. It may help regulate many body functions, including mood, bowel movements, and sleep. Some medications help boost …
Serotonin: Functions, deficiency, and how to boost
Apr 18, 2024 · This article looks at the role of serotonin in the body, drugs that affect serotonin, side effects and symptoms of serotonin deficiency, and how to boost serotonin levels.
What Does Serotonin Regulate in the Body? - Biology Insights
Jun 26, 2025 · Serotonin has a multifaceted role in managing the body’s sleep-wake cycles. Its function is connected to the production of melatonin, a primary hormone for sleep. In the …
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. …
What Is Serotonin: Roles, Effects, and How to Balance It
May 7, 2025 · Serotonin plays a key role in learning, memory, digestion, and happiness while also regulating body temperature, sleep, sexual behavior, and hunger. A lack of serotonin is …