Serotonin and Migraines: The Biochemistry Connection
If you've read much about migraine treatment, you've bumped into serotonin whether the articles named it or not. The most important acute migraine drugs — the triptans — are built around it, the newer gepants and preventive antibodies grew out of the same research lineage, and a lot of trigger folklore (chocolate, sleep, hormones) circles back to it. Serotonin is, in a real sense, the molecule the modern understanding of migraine is organized around.
That doesn't mean migraine is simply "low serotonin," a phrase that gets thrown around and oversimplifies a genuinely intricate story. This is a plain-language tour of what serotonin actually does in a migraine brain, why it matters for treatment, and how it connects to the everyday triggers you can feel.