Foods and Habits That Keep Your Immune System Resilient

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Oct 6, 2025

Guest

Roger Seheult, MD

Guest

Elizabeth Boham

Join Dr. Elizabeth Boham, a family physician specializing in nutrition and women’s health, and Dr. Roger Seheult, a quadruple board-certified expert in various medical fields, as they dive into the secrets of immune resilience. They discuss how 'zombie cells' contribute to inflammation and aging, the power of dietary choices in combating these effects, and the role of hormetic stressors like exercise and cold exposure in boosting immunity. Discover which polyphenol-rich foods can enhance your defenses and why quality sleep is crucial for immune repair.

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INSIGHT

Immune System Can Be Rebuilt

Immunorejuvenation trains your immune system to rebuild and avoid immunosenescence as you age.
Senescent “zombie” cells spread inflammation and accelerating aging if not cleared.

ADVICE

Activate Cellular Recycling

Stimulate autophagy and mitophagy through lifestyle measures to clear damaged cells and mitochondria.
Use fasting, exercise, and nutrients that support cellular recycling to rejuvenate tissues.

ADVICE

Prioritize An Anti-Inflammatory Diet

Eat an anti-inflammatory, plant-rich diet full of polyphenols, prebiotics, and omega-3s.
Avoid processed, sugary, and fried foods that drive chronic inflammation and immune dysfunction.

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Our immune systems are under more pressure than ever—from processed diets, environmental toxins, stress, and fast-spreading infections—and the result is faster aging and greater vulnerability to disease. As we grow older, “zombie cells” spread inflammation throughout the body, weakening defenses and accelerating decline. But research shows we’re not powerless: the emerging science of immuno-rejuvenation reveals that we can retrain and rebuild our immunity. Through the right foods, lifestyle habits, and even strategic stressors, the body has hidden pathways for repair and renewal—offering clues to how we might slow aging and unlock greater resilience.

In this episode, I discuss, along with Dr. Elizabeth Boham and Dr. Roger Seheult, how we can support the immune system by using food, lifestyle, and hormetic stress to reduce illness and restore resilience while slowing aging.

Dr. Elizabeth Boham is Board Certified in Family Medicine from Albany Medical School, and she is an Institute for Functional Medicine Certified Practitioner and the Medical Director of The UltraWellness Center. Dr. Boham lectures on a variety of topics, including Women’s Health and Breast Cancer Prevention, insulin resistance, heart health, weight control and allergies. She is on the faculty for the Institute for Functional Medicine.

Dr. Roger Seheult is currently an Associate Clinical Professor at the University of California, Riverside School of Medicine, and an Assistant Clinical Professor at the School of Medicine and Allied Health at Loma Linda University. Dr. Seheult is quadruple board-certified in Internal Medicine, Pulmonary Diseases, Critical Care Medicine, and Sleep Medicine through the American Board of Internal Medicine. His current practice is in Banning, California where he is a critical care physician, pulmonologist, and sleep physician at Beaver Medical Group. He was formerly the Director for Intensive Care Services at San Gorgonio Memorial Hospital. He lectures routinely across the country at conferences and for medical, PA, and RT societies. Dr. Seheult is also the Co-founder of MedCram, an online medical education company that helps healthcare professionals and also lay people understand medical topics clearly.

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