Dr. Dean Mitchell sits down with Dr. Kenneth Liegner, an internist and critical care physician who has treated thousands of chronic Lyme patients since the early days of the disease's recognition. Dr. Liegner trained in anatomic pathology, internal medicine, and surgical critical care before opening a general practice in Westchester County, where he found himself in the middle of one of the most contested debates in modern medicine.

The conversation traces how Dr. Liegner came to understand that Lyme disease could follow a relapsing, persistent course, and why that conclusion put him at odds with mainstream infectious disease guidelines. He discusses the IDSA's 2000 and 2006 guidelines, the role of insurance industry interests in shaping treatment coverage, and what it meant professionally to keep treating patients during an era he describes as dangerous for practitioners. He also shares a 1991 case in which spirochetes were cultured from a patient's spinal fluid after prior intravenous antibiotic treatment, later published in the science press.

Dr. Mitchell and Dr. Liegner cover the complexity of tick-borne coinfections including Babesiosis, Ehrlichiosis, Anaplasmosis, and Bartonella; the limitations of standard serological testing and the Dearborn criteria; and the challenge of biofilm as a barrier to antibiotic effectiveness. Dr. Liegner also explains his current approach to prophylactic treatment following a tick attachment, including his use of minocycline and Malarone, and his reasoning for that protocol given what he has seen over decades of practice.

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Dr. Dean Mitchell sits down with Dr. Lawrence Lustig, Howard W. Smith Professor and Chair of Otolaryngology Head and Neck Surgery at Columbia University, to discuss a gene therapy called Otofarmaní that has recently received FDA approval for a rare genetic form of deafness caused by mutations in the otoferlin gene. Dr. Lustig, one of the lead investigators in the clinical trial, explains how the therapy works, why this particular form of deafness made it a viable candidate, and what the results looked like across their first 12 patients.

The conversation covers the decades of foundational science that made this possible, from early genetics research in the 1980s and 90s to the dual-vector delivery technique that solved the problem of the otoferlin gene being too large for a single viral vector. Dr. Lustig walks through how the inner ear functions, why otoferlin-related deafness preserves inner ear structures long enough to allow intervention, and how hearing recovery typically unfolds over weeks to months in treated children. The discussion also addresses the significant variability in outcomes across patients and why that variability is still not fully understood.

Dr. Mitchell and Dr. Lustig compare gene therapy to cochlear implantation, examining the practical differences in sound quality, hardware management, and the speech and language development windows that make early intervention critical regardless of which approach is used. They also address hearing screening practices, the limits of otoacoustic emissions testing in otoferlin-related cases, and what might be on the horizon for more common forms of hearing loss, including age-related degeneration and noise-induced damage.

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For decades, hormone replacement therapy carried a stigma rooted in a flawed study that left millions of women suffering through menopause without support. Dr. Dean Mitchell sits down with Dr. Gillian Goddard, endocrinologist and author of The Hormone Loop, to untangle the science and set the record straight.

They cover why the Women's Health Initiative study has been widely misinterpreted, what actually happens hormonally during perimenopause and menopause, and why the timing of when a woman starts HRT matters more than most doctors discuss. Dr. Goddard explains the difference between synthetic and bioidentical hormones, why transdermal estrogen is preferred over oral, and what the research actually says about breast cancer risk.

The conversation also addresses testosterone for women, the limitations of black cohosh and soy supplements, how to monitor treatment, and why more women should be consulting an endocrinologist rather than relying solely on their gynecologist.

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Dr. Dean Mitchell sits down with Dr. Jeffrey Morrison to explore how functional and integrative medicine approaches complex chronic illness. Their conversation covers Lyme disease, digestive disorders, environmental toxin exposure, and the growing concern around endocrine-disrupting chemicals, microplastics, and mitochondrial dysfunction.

Dr. Morrison shares how his background in environmental medicine and his work with Dr. Atkins shaped his clinical approach. The discussion looks at testing for heavy metals and toxins, the role of gut health in recovery, and therapies including ozone treatment, EBOO blood filtration, red light therapy, nutritional IVs, and peptides. Dr. Mitchell also reflects on his own path from conventional allergy practice into integrative medicine and the evolution of sublingual immunotherapy.

The conversation stays grounded in clinical experience while acknowledging the limits and controversies surrounding newer therapies. Both physicians emphasize careful evaluation, individualized treatment, and the importance of understanding how environmental exposures may affect long-term health.

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Dr. Dean Mitchell speaks with Professor Prue Hart, an international expert in photoimmunology from the Kids Research Institute in Australia, who has spent 30 years studying how UV light interacts with the human immune system. Their conversation covers the science behind why the skin, as the body's largest immune organ, can generate systemic effects well beyond where light is applied.

Professor Hart explains her clinical trial using narrowband UVB therapy in patients with clinically isolated syndrome, an early precursor to multiple sclerosis. The trial, which enrolled 20 drug-free patients, tracked immune cell function, inflammatory protein markers, and patient wellbeing over 12 months. The findings suggested that two months of phototherapy produced measurable changes in immune activity lasting at least 90 days, alongside improvements in energy, mood, and social functioning.

The conversation also addresses the practical dimensions of this therapy, including its long-standing use in dermatology for psoriasis, its safety profile relative to biologic medications, and the growing availability of at-home narrowband UVB devices. Professor Hart and Dr. Mitchell also examine the role of vitamin D as a biomarker rather than a therapeutic agent, the epidemiological connection between latitude and autoimmune disease rates, and how sunscreen use and sun avoidance factor into the broader picture of health.

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Dr. Dean Mitchell speaks with Dr. Barbara Cordell, author of "My Gut Makes Alcohol" and a researcher with over 30 published academic papers, including three specifically on auto brewery syndrome. Dr. Cordell brings both professional expertise and personal experience to the conversation, having navigated the condition through her husband's years-long medical ordeal before a diagnosis was ever reached.

The discussion covers what auto brewery syndrome actually is, which organisms are responsible for fermentation in the gut, and why factors like antibiotic use, high-carbohydrate diets, proton pump inhibitors, and processed food intake appear to create conditions for the syndrome to develop. Dr. Mitchell draws parallels to candida overgrowth and small intestinal fungal overgrowth, and both physicians explore how these conditions may exist on a shared spectrum of microbiome dysregulation.

Practical topics include the published diagnostic protocol involving glucose challenge and blood alcohol testing in an observed clinical setting, the role of culture-based antifungal treatment, dietary management during recovery, and why fermented foods may not be appropriate for certain patients. Dr. Cordell also addresses the legal consequences many patients face, including DUI charges, and describes her work testifying as an expert witness and connecting affected individuals with attorneys familiar with the condition.

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Dr. Dean Mitchell sits down with Alan Bell, a practicing attorney who spent years in a wheelchair tethered to an oxygen tank after a debilitating toxic chemical exposure left him unrecognized and undiagnosed by hundreds of physicians, including specialists at Mayo Clinic, Cleveland Clinic, and the National Jewish Immune Hospital. Bell's story moves from early flu-like symptoms to grand mal seizures, extreme chemical hypersensitivity, and years of near-total isolation in a specially built structure in the desert.

Bell details his time at the Environmental Health Center in Dallas under Dr. William Rea, a self-contained treatment facility that served patients with severe chemical and environmental sensitivities at a time when conditions like mast cell activation syndrome and CIRS were not yet part of mainstream medicine. He describes the psychological and social dimensions of an illness that was broadly dismissed by the medical establishment, and how connection with fellow patients provided a rare sense of being understood.

Now a faculty member at both the University of Miami and Boston University Schools of Medicine, Bell teaches medical students about the environment's impact on human health. He also takes on toxic tort cases nationally, working alongside attorneys from prominent environmental litigation practices. The conversation covers the legal landscape for tenants and workers dealing with mold or chemical exposure, the evidentiary challenges of these cases, and Bell's core advice: pay attention to when and where symptoms improve or worsen, and treat the body itself as the most reliable diagnostic tool available.

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Dr. Dean Mitchell walks through a complete approach to seasonal allergy management, starting with why certain antihistamines are better suited for spring pollen symptoms than others. He explains the differences between first and second-generation antihistamines, flags specific drug combinations to avoid, and covers proper technique for nasal sprays and eye drops, including common mistakes that reduce effectiveness or cause harm over time.

The conversation then shifts to the longer-term option most patients never hear about. Dr. Mitchell shares the history behind sublingual allergy drops, how they work through gradual immune desensitization, and why he transitioned away from allergy injections after a serious patient reaction in 1998. He draws on more than two decades of clinical experience using sublingual therapy for pollen, animal, and food allergies.

He also addresses why sublingual immunotherapy remains hard to find in conventional allergy practices, pointing to insurance reimbursement structures as the primary barrier rather than any question of safety or effectiveness. Patient compliance data and published research are referenced to support the comparison between the two approaches.

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