serotonin function

What Does Serotonin Do?

It's an important question in trying to understand the chemicals that help define us: "What does serotonin do?" Serotonin is a neurotransmitter—a brain chemical that helps to activate communication between brain cells. Neurotransmitters work by binding to receptors (molecules of protein that receive external signals) on the surface of cells. … Read More

Serotonin Deficiency: Is This Really a Cause of Depression?

A serotonin deficiency has been theorized to be a core cause of depression for half a century, since it was observed that drugs that enhance serotonin levels have antidepressant effects in many people. However, what is not yet resolved is whether the drugs actually correct an underlying serotonin deficiency. Researchers from … Read More

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