#20: Did you know your gut health could be the root cause of your brain fog, anxiety, poor sleep, or even autoimmune issues? In this episode of The Science of Sound, Dr. Paul Harris joins host Aaron Fournier to uncover the shocking connections between IBS, SIBO, your nervous system, and your mental clarity. This is more than a digestion conversation—it's a deep dive into the core of your health. Dr. Harris shares: How food poisoning can trigger long-term gut damage What hydrogen sulfide gas says about your microbiome The surprising brain-gut link and role of glutamine Why 70% of your immune system is in your gut How to reset your digestion with low-fermentation diets and vagus nerve stimulation Learn how stress, autoimmunity, and even childhood trauma can disrupt your gut—and what you can do starting today to heal your system from the inside out. 00:00 Introduction 02:14 Understanding IBS and SIBO 04:29 Common Gut Symptoms and Diagnosis Delays 06:44 What Food Poisoning Has to Do with Gut Health 08:59 Gallbladder Issues and Bile Toxicity 11:14 Stool Smell, Bacteria, and Digestive Clues 13:29 Autoimmune Connections and Molecular Mimicry 15:44 Migrating Motor Complex Explained 17:59 Diabetes and the Nerve-Gut Link 20:14 How Neurotransmitters Are Made in the Gut 22:29 GABA, Glutamine, and Emotional Balance 24:44 Immune System in the Gut 26:59 Leaky Gut, Gluten, and Autoimmunity 29:14 Diagnosing SIBO Accurately 31:29 How Stress Triggers Digestive Disorders 33:44 Functional vs. Conventional Medicine 35:59 Lifestyle Changes for Gut Health 38:13 Closing Reflections and Final Stats   Follow Soaak & The Science of Sound Podcast: Website – Soaak Technologies App – Soaak Frequency Therapy Instagram – @thesoaakpodcast Sponsors:Visit soaak.com/app and enter code Soaakpod for your first month free! Produced by Soaak Technologies Inc.