Dr. Neil Nathan explains how vagal dysfunction, limbic imbalance, and mast cell activation block recovery from Lyme, mold toxicity, and chronic illness.

Dr. Neil Nathan joins Dr. Richard Horowitz to explore how vagus nerve dysfunction, limbic system imbalance, and mast cell activation keep chronic Lyme and mold patients stuck in cycles of fatigue, hypersensitivity, POTS, GI issues, anxiety, and inflammation. He explains the “trifecta of sensitivity,” the role of early trauma, how the cell danger response traps the body in survival mode, and why some patients can’t tolerate treatment until their nervous system feels safe. Dr. Nathan outlines practical diagnostic steps and therapies—from vagal stimulators to limbic retraining and microcurrent therapy—to help patients finally move forward.

Neil Nathan, MD, has been practicing medicine for 50 years, is Board Certified in Family Practice and Pain Management, and is a Founding Diplomate of the American Board of Integrative Holistic Medicine and a Founding Diplomate of ISEAI. He has written several books, including Healing is Possible: New Hope for Chronic Fatigue, Fibromyalgia, Persistent Pain, and Other Chronic Illnesses and On Hope and Healing: For Those Who Have Fallen Through the Medical Cracks. He has hosted an internationally syndicated radio program/podcast on Voice America called The Cutting Edge of Health and Wellness Today. He has been working to bring an awareness that mold toxicity is a major contributing factor for patients with chronic illness and lectures internationally on this subject which led to the publication of his book, Mold and Mycotoxins: Current Evaluation and Treatment, 2016 and now to his most recent book Toxic: Heal Your Body from Mold Toxicity, Lyme Disease, Multiple Chemical Sensitivities and Chronic Environmental Illness.