In our day-to-day lives, we're constantly making a slew of decisions, from immediate matters to prospects on the far horizon. But the evolutionary nuts-and-bolts of how our brains weigh these numerous ...

Serotonin is a chemical produced mostly in our digestive tract. 1 Despite its humble beginnings in the gut, serotonin has the important job of deciding which brain cells to "turn off" (inhibit) during ...

Low levels of serotonin in the brain are seen as a possible cause of depression and many antidepressants act by blocking a protein that transports serotonin away from the nerve cells. A brain imaging ...

Years before someone with Parkinson's disease has any movement-related symptoms, slight malfunctions of the brain's serotonin system could be an early warning sign that the roots of PD are taking hold ...

Serotonin 1A receptor is a G protein-coupled receptor of the serotonergic system expressed both presynaptically as an autoreceptor in raphe nuclei and postsynaptically across limbic and cortical ...

Serotonin is a neurotransmitter important for mood, digestion, and sleep. You can increase serotonin levels naturally through exercise and sunlight. Serotonin is a naturally occurring monoamine ...

Medically reviewed by Michael MacIntyre, MD Key Takeaways Low serotonin can cause mood and anxiety problems, stomach aches, headaches, and fatigue.Serotonin helps control mood, digestion, sleep, wound ...

Loss of the "happiness" brain hormone serotonin might play a role in the decline of brain function as a person ages, a new study reports. People with mild cognitive impairment (MCI) had up to 25% ...

Researchers at Case Western Reserve University School of Medicine have created the first complete model to describe the role that serotonin plays in brain development and structure. Serotonin, also ...

Dopamine and serotonin are both neurotransmitters — chemical messengers that transmit signals between cells — which regulate bodily functions like mood, sleep, and digestion. While dopamine and ...

Low levels of serotonin in the brain are seen as a possible cause of depression and many antidepressants act by blocking a protein that transports serotonin away from the nerve cells. A brain imaging ...