Gut-Brain Axis & Vagal Tone

⏱️ 11 min

Gut-Brain Axis & Vagal Tone Sep 3, 2026

Gargling, Humming & Chanting: Vocal Cord Motor Activation of the Vagus

A scientific monograph on acoustic and biomechanical stimulation of the Vagus Nerve, evaluating vigorous deep gargling, low-frequency humming (130 Hz), chanting, and recurrent laryngeal nerve motor activation.

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Salih Demir, MSc

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⏱️ 12 min

Gut-Brain Axis & Vagal Tone Sep 3, 2026

Post-Prandial Vagal Satiety: CCK, GLP-1 & Intragastric Mechanoreceptors

A scientific monograph on Post-Prandial Vagal Satiety signaling, analyzing intragastric tension mechanoreceptors, enteroendocrine Cholecystokinin (CCK) and GLP-1 release, and NTS hypothalamic appetite termination.

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Salih Demir, MSc

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⏱️ 12 min

Gut-Brain Axis & Vagal Tone Sep 3, 2026

Psychobiotics: Bifidobacterium longum 1714 & Lactobacillus helveticus R0052

A scientific monograph on Psychobiotics, evaluating human clinical trials on Bifidobacterium longum 1714 and Lactobacillus helveticus R0052, HPA axis cortisol blunting, and vagal neuroplasticity.

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Salih Demir, MSc

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⏱️ 11 min

Gut-Brain Axis & Vagal Tone Sep 3, 2026

Cold Face Immersion & The Mammalian Dive Reflex: Trigeminal-Vagal Surge

A scientific monograph on Cold Face Immersion, evaluating the ophthalmic trigeminal-vagal reflex arc, mammalian dive reflex bradycardia, and rapid parasympathetic recovery.

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Salih Demir, MSc

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⏱️ 12 min

Gut-Brain Axis & Vagal Tone Sep 3, 2026

Heart Rate Variability (HRV): High-Frequency Spectral Power & Vagal Tone

A scientific monograph on Heart Rate Variability (HRV) as a non-invasive biometric of vagal tone, analyzing RMSSD, High-Frequency (HF: 0.15-0.40 Hz) power, and autonomic longevity.

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Salih Demir, MSc

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⏱️ 11 min

Gut-Brain Axis & Vagal Tone Sep 3, 2026

Auricular Vagus Nerve Stimulation: Cymba Conchae & The Anti-Inflammatory Reflex

A scientific monograph on transcutaneous Auricular Vagus Nerve Stimulation (taVNS), evaluating the somatosensory innervation of the cymba conchae by Arnold’s nerve and the cholinergic anti-inflammatory reflex.

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Salih Demir, MSc

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⏱️ 12 min

Gut-Brain Axis & Vagal Tone Sep 3, 2026

Resonant Diaphragmatic Breathwork: 0.1 Hz Pacing & Baroreceptor Resonance

A scientific monograph on Resonant Frequency Breathing (0.1 Hz / ~6 breaths per minute), analyzing pulmonary stretch receptors, carotid baroreflex coupling, and maximum vagal RSA.

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Salih Demir, MSc

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⏱️ 12 min

Gut-Brain Axis & Vagal Tone Sep 3, 2026

The Cholinergic Anti-Inflammatory Pathway: Nicotinic α7nAChR & Splenic Immunity

A scientific monograph on the Cholinergic Anti-Inflammatory Pathway, analyzing vagus nerve splenic communication, T-cell acetylcholine release, and macrophage alpha-7 nicotinic receptor (α7nAChR) cytokine arrest.

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Salih Demir, MSc

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⏱️ 12 min

Gut-Brain Axis & Vagal Tone Sep 3, 2026

Vagus Nerve Architecture: 80% Afferent Visceral Sensory Signaling & NTS Integration

A scientific monograph on the neuroanatomy of the tenth cranial nerve (Vagus Nerve), analyzing 80% afferent sensory fibers, the Nucleus Tractus Solitarius (NTS), and the gut-brain information highway.

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Salih Demir, MSc

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⏱️ 12 min

Gut-Brain Axis & Vagal Tone Sep 3, 2026

Microbial Neurotransmitter Synthesis: GABA, Dopamine & Serotonin in Enteric Plexuses

A scientific monograph on microbial endocrinology, analyzing probiotic synthesis of GABA, dopamine, and serotonin in the gut lumen, tryptophan metabolism, and enteric neurotransmission.

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Salih Demir, MSc

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