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.

Does Sleep Affect Gut Health? How Sleep and Digestion Are Connected

Kerri Rachelle

Published on: 07/08/2026

Learn how sleep and circadian rhythm influence digestion, appetite, gut symptoms, intestinal resilience and microbial rhythms—and why the relationship works both ways.

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Cortisol Belly: Causes, Signs and What Actually Helps

Kerri Rachelle

Published on: 30/07/2026

Can stress cause belly fat? Learn how cortisol, sleep, insulin resistance, perimenopause, nutrition and training affect abdominal fat—and what helps.

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Creatine for Women: Benefits, Safety & Weight Gain

Kerri Rachelle

Published on: 30/07/2026

Learn how creatine supports strength, power and muscle, why scale weight may rise, how much to take and what women should know about safety

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Perimenopause Insomnia: 3 A.M. Waking and What Helps

Kerri Rachelle

Published on: 27/07/2026

Learn why perimenopause can cause insomnia, night sweats and 3 a.m. waking—and what may help, from sleep routines and CBT-I to medical evaluation.

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Perimenopause Weight Gain: Why It Happens and What Helps

Kerri Rachelle

Published on: 27/07/2026

Learn why perimenopause can change weight, belly fat, muscle and metabolism—and how nutrition, strength training, sleep and metabolic care may help.

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What Is the Best Strength Training During Perimenopause?

Kerri Rachelle

Published on: 23/07/2026

Learn how strength training during perimenopause supports muscle, bone and metabolic health—and how to train, fuel and recover effectively.

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