EP347: What Do You Know About Your Appendix?

Welcome to my podcast. I am Doctor Warrick Bishop, and I want to help you to live as well as possible for as long as possible. I’m a practising cardiologist, best-selling author, keynote speaker, and the creator of The Healthy Heart Network. I have over 20 years as a specialist cardiologist and a private practice of over 10,000 patients. Episode Summary: What Do You Know About Your Appendix? Dr. Warwick Bishop, a physician and podcaster, explores the emerging medical perspective on the appendix in this episode. Drawing from recent medical literature, Bishop challenges the traditional view of the appendix as a useless vestigial organ and discusses new research suggesting it plays important roles in gut health and immune function. The episode examines whether preserving the appendix through antibiotic treatment, rather than surgical removal, might be beneficial for long-term health. Key Takeaways: The appendix may not be useless as previously thought; it could serve as a "safe house" that stores beneficial gut bacteria and helps restore the microbiome after infections like salmonella. Antibiotic therapy is emerging as a viable alternative to appendectomy (surgical removal) for uncomplicated appendicitis, raising questions about whether routine surgical removal is always necessary. People who have undergone appendectomy show more than double the risk of serious non-typhoidal salmonella infections requiring hospitalization, suggesting a protective role of the intact appendix. Removal of the appendix is linked to increased risk of irritable bowel syndrome, type 2 diabetes, lupus, and potentially colorectal cancer and Parkinson's disease. The appendix contains special M cells that detect invasive bacteria and viruses, suggesting it functions as a training ground for the immune system. Comparative anatomy studies show the appendix has undergone at least 29 evolutionary changes across mammalian species, indicating it likely has adaptive functions rather than being merely vestigial. Research on zoo animals demonstrated that species with an appendix lived longer and experienced less diarrhea than those without, supporting a protective health function. Before automatically removing an appendix during treatment with antibiotics, consideration should be given to whether the antibiotics themselves might harm the beneficial bacterial reservoir the appendix maintains.