15 modules · Core track
Each module includes a public explainer, a clinical deep-dive, claim-graded evidence, a case, a myth-buster, quiz questions, and flashcards. Switch tracks in the sidebar to unlock different layers.
FDA-approved or cleared with pivotal/multiple RCTs.
Why the Vagus Nerve Matters
From brainstem to body — and why everyone is suddenly talking about it.
Anatomy of the Vagus Nerve
Brainstem nuclei, jugular foramen, branches to larynx, heart, lungs, and gut.
Vagus Physiology: Afferents, Efferents, Reflexes
Why 'stimulating the vagus' is never one single intervention.
Gut-Brain Axis & Neuroimmune Signaling
The inflammatory reflex, cholinergic anti-inflammatory pathway, and where hype outruns evidence.
Non-Invasive Cervical VNS for Headache
gammaCore for migraine and cluster headache.
Peptide Signaling & the Vagus Nerve
How GLP-1, CCK, ghrelin, leptin and oxytocin talk to the brain through vagal afferents — and where the GLP-1 era reshapes the conversation.
Capstone Project
Build something that demonstrates evidence-based mastery.