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Posts tagged "serotonin"

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Serotonin Is Made in the Gut: Rethinking Mood at Its Source
serotonin gut health microbiome

Serotonin Is Made in the Gut: Rethinking Mood at Its Source

Roughly 90% of the serotonin in your body is produced in the intestinal wall, not the brain. That single fact reorganizes the way we should think about mood, digestion, and the treatments that actually work.

By UltraSkool Research Team May 14, 2026
The Gut-Brain Axis: Mitochondria at the Crossroads
gut-brain axis mitochondria vagus nerve

The Gut-Brain Axis: Mitochondria at the Crossroads

Your gut and brain are in constant conversation — and mitochondria are the interpreters. From serotonin production to vagal signaling, mitochondrial health determines the quality of this crucial dialogue.

By Ultra Skool Apr 8, 2026