The Lyme Disease Epidemic & the Inflammation Connection — A Conversation with Dr. Horowitz and Dr. Daniel AmenThe Lyme Disease Epidemic & the Inflammation Connection — A Conversation with Dr. Horowitz and Dr. Daniel Amen
The Brain Warrior's Way Podcast
Dr. Daniel Amen and Dr. Richard Horowitz discuss how Lyme disease, co-infections and inflammation may underlie chronic fatigue, pain, brain fog and psychiatric symptoms. They talk through clinical diagnosis, dapsone-based treatment strategies and the possible connection between infections and dementia-related biomarkers.
47:18•5 Oct 2026
Lyme, Inflammation and the Brain: Dr Amen and Dr Horowitz on Hidden Illness
Episode Overview
- Lyme disease and co-infections can trigger fatigue, migratory pain, brain fog and a range of psychiatric symptoms, including anxiety, depression, OCD and psychosis.
- Standard two-tier Lyme testing often misses cases, so diagnosis is largely clinical and supported by tools like the Horowitz-MSIDS Questionnaire and specialised immunoblot tests.
- Chronic illness frequently involves multiple overlapping factors such as infections, mould, heavy metals, hormonal issues, gut disruption and sleep problems that all drive inflammation.
- Dapsone combination therapy targets biofilm persister bacteria and has been reported by Dr. Horowitz to improve long-standing symptoms in some chronically ill patients.
- Managing Herxheimer reactions with supplements, diet changes and detox support is key to making intensive anti-infective protocols more tolerable.
“"If you're tired and you're achy and your brain's not working properly with memory issues, with psychiatric issues, insomnia, it's a really high chance you've been exposed to lyme."”
What insights can experts and survivors share about addiction? Here, the focus shifts to infectious disease and brain health, showing how physical illness can ripple into mental struggles that are often mislabelled as purely psychiatric. Dr. Daniel Amen talks with Dr. Richard Horowitz, a board-certified internist who has spent over four decades treating more than 13,000 people with Lyme disease and other tick-borne infections.
The conversation centres on how Lyme, bartonella, babesia, mould toxins and heavy metals can combine to create "a huge fire in the body, fire in the brain" – driving fatigue, migratory pain, brain fog and issues like anxiety, depression, OCD and even psychosis. You’ll hear why Lyme is called "the great imitator" and how often it hides beneath diagnoses such as chronic fatigue syndrome, fibromyalgia and long COVID. Dr.
Horowitz explains that 14.5% of the global population has now been exposed to Lyme and shares his experience of patients who, after a tick bite, suddenly become "anxious, depressed" and start seeing or hearing things that weren’t there before. Diagnosis is shown as a clinical art rather than a simple blood test, with Dr. Horowitz outlining his Horowitz-MSIDS Questionnaire and hallmark signs like migratory pain.
He then walks through his dapsone combination therapy, a nine-week oral protocol aimed at stubborn "biofilm persister" infections, and describes how patient mistakes with dosing helped him stumble onto a more effective regimen. Dr. Amen links these ideas to his BRIGHT MINDS brain-health framework and highlights research tying infectious disease to dementia.
Together they discuss Herxheimer reactions, why inflammation can make people feel dramatically worse before they feel better, and practical ways to calm that storm with nutrition, supplements and lifestyle changes. If you’ve ever wondered whether hidden infections might be fuelling both physical pain and psychiatric symptoms, this conversation may prompt you to ask new questions about your own health and recovery.
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