REV0lution Health Library

Evidence-informed articles on nutrition, metabolism, hormones, digestive health, fitness, recovery, lab testing, and functional medicine.

Gut Health
IBS, bloating, GERD, constipation, gut health
Hormones
PCOS, perimenopause, menopause, cortisol
Thyroid Health
Hashimoto's, hypothyroidism, thyroid labs
Metabolic Health
Insulin resistance, blood sugar, weight loss resistance
Autoimmune Disease
Autoimmunity, inflammation, immune regulation, root-cause support

Advanced Lab Analysis
Functional testing, blood chemistry, GI-MAP, DUTCH, OAT, and lab interpretation
Fitness & Recovery
Strength, movement, sleep, recovery, performance, and resilience
Functional Medicine
Root-cause care, systems thinking, symptom patterns, and whole-person health
Nutrition & Performance
Protein, fueling, body composition, exercise nutrition, and metabolic health

Understand your health. Backed by science.

Vagus Nerve and Digestion: Natural Ways to Support Vagal Tone

Kerri Rachelle

Published on: 18/08/2026

Learn how nutrition, breathing, humming, movement, sleep, touch and connection may support the vagus nerve, digestion and gut–brain health.

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Can Gut–Brain Therapy Help Digestive Symptoms and Food Fear?

Kerri Rachelle

Published on: 18/08/2026

Learn how gut–brain therapy may complement nutrition care by reducing digestive sensitivity, food fear and symptom-related stress.

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Can Stress Cause Bloating, Constipation, Diarrhea, or Reflux?

Kerri Rachelle

Published on: 06/08/2026

Learn how stress may contribute to bloating, constipation, diarrhea and reflux through changes in gut motility, sensitivity and nervous-system signaling.

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Gut-Brain Axis: How Your Brain and Digestion Connect

Kerri Rachelle

Published on: 06/08/2026

Learn how the gut-brain axis connects digestion and the brain through the vagus nerve, enteric nervous system, hormones, immunity and gut microbes.

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What Is the Gut Microbiome? Functions, Testing and Health

Kerri Rachelle

Published on: 04/08/2026

Learn what the gut microbiome is, what gut microbes do, what dysbiosis means and what microbiome testing can—and cannot—tell you about your health.

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