Chronic illness rarely fits neatly into a single diagnosis. Symptoms can span multiple systems, leaving people profoundly unwell even when standard testing appears normal. I understand this experience from the inside out with systemic inflammation because I’ve lived it myself. Nervous system sensitivity may be at the root of your symptoms. Learn how to address it. Today, I sit down with Dr. Neil Nathan, a leading expert in complex chronic illness and author of *Toxic*, now in its second edition. We explore why these conditions are so often misunderstood and how identifying what is driving them can create a path toward recovery through functional medicine. We discuss: - Why mold toxicity, Lyme disease, and long COVID can be so difficult to diagnose - How to identify the root cause instead of chasing downstream symptoms - What the Cell Danger Response is and why the body can remain stuck in survival mode - Why some people suddenly become sensitive to foods, chemicals, medications, light, and sound - Why the right treatment can make symptoms worse when introduced at the wrong time I’ve been sick enough to know how quickly chronic illness can narrow your world—and how discouraging it is when no one can explain why. But I’m also living proof that the body can recover. The answer is not always more treatment. Often, it begins with finding the root cause, respecting what the body can tolerate, and addressing each layer in the right order. Get Toxic here - https://www.amazon.com/dp/1628605669 #ChronicIllness #MoldToxicity #LymeDisease #CellDangerResponse #FunctionalMedicine View Show Notes From This Episode - https://drhyman.com/blogs/content/podcast-ep1178 Sign up for Dr. Hyman’s Brainshaping Academy to learn how to nourish the biological systems that support your mental, emotional, and cognitive health https://drhyman.com/products/brainshaping?utm_source=dr_hyman_show&utm_medium=newsletter&utm_campaign=may_27&utm_content=link Get Free Weekly Health Tips from Dr. Hyman https://drhyman.com/pages/picks?utm_campaign=shownotes&utm_medium=banner&utm_source=podcast Sign Up for Dr. Hyman’s Weekly Longevity Journal https://drhyman.com/pages/longevity?utm_campaign=shownotes&utm_medium=banner&utm_source=podcast Join the 10-Day Detox to Reset Your Health https://drhyman.com/pages/10-day-detox Join the Hyman Hive for Expert Support and Real Results https://drhyman.com/pages/hyman-hive This episode is brought to you by BIOptimizers, Cozy Earth, Perfect Amino, Seatopia, Made In, and BON CHARGE. Shop Magnesium Breakthrough at bioptimizers.com/hyman and save 15% with code HYMAN. Upgrade your sleep setup with cozyearth.com and enjoy 20% off  with code HYMAN. Help fill protein gaps at bodyhealth.com and use code HYMAN20 for 20% off. Find a cleaner source of seafood. Check out seatopia.fish and use code HYMAN for free shipping on your first order. Shop for kitchen essentials at madeincookware.com and save 10% off your first order with code HYMAN-HIVE. Explore red light products at boncharge.com/hyman and enjoy 15% off with code HYMAN.