2026-10-05 · Video
After 60, your gut microbiome shifts in ways most people never hear explained clearly. In this episode, Mark Buse, Nationally Board Certified Colon Therapist and researcher, walks through what actually happens to gut bacteria as we age, why diversity drops, why harmful bacteria can gain ground, and why your daily habits matter more than your genetics. Practical, science-grounded, and refreshingly plain.
Also on YouTube.
Mark Buse is Nationally Board-Certified Colon Hydro-Therapist (NBCHT) and a leading colon hydrotherapy practitioner, instructor, and researcher of colon health. Mark studies the impacts of the gut microbiome on gut motility, digestion, constipation, and general wellness. Mark has a Bachelor of Science in Chemistry, is a Fellow with the American Institute of Chemists, has obtained several patients involving replacement of toxic materials, and is a science writer in areas of gut microbiota and probiotics. Mark is the International Association for Colon Hydrotherapy President Emeritus and Founder of IACT’s Leadership and Mentorship Program and the Chair and Founder of IACT’s Research Committee and is a member of the American Gastroenterology Association (AGA). Marks is the colon hydro-therapist and owner of Turtle Creek Wellness Center in Tyler, Texas.