73: Sauna Science Explained: Infrared vs. Traditional, Detox, Heart Health, and What to Look For with Connie Zack

What if sauna therapy supports more than relaxation, influencing detoxification, circulation, and long-term health?In this episode of Modern Thyroid and Wellness, McCall McPherson sits down with Connie Zack, co-founder of Sunlighten, to unpack the science, strategy, and real-world benefits of sauna therapy. Connie shares the deeply personal story that led her and her husband to leave careers in pharmaceutical sales and build Sunlighten after seeing infrared therapy transform her brother’s health. Connie and her husband started Sunlighten more than 20 years ago after her brother’s life changed through infrared light therapy, and the company continues to focus on science-backed infrared sauna technology.Together, McCall and Connie break down the differences between traditional saunas and infrared saunas, why all infrared saunas are not created equal, what far infrared actually does inside the body, and how sauna use can support cardiovascular health, detoxification, skin, nervous system regulation, and overall longevity. They also discuss red light therapy, what to look for when shopping for a sauna, and how to think about sauna use as a practical part of a wellness routine.This episode is a helpful guide for anyone curious about sauna therapy and wanting a clearer, more evidence-informed understanding of how to choose the right sauna and use it well.Episode HighlightsConnie Zack’s personal story of how her brother’s chronic illness led her into the world of infrared light and sauna therapyWhy Connie and her husband left stable pharmaceutical careers to build SunlightenThe difference between traditional saunas and infrared saunasHow traditional saunas heat the air, while infrared heats the body more directlyWhy far infrared is the foundational wavelength in infrared sauna therapyWhy all infrared saunas are not the same and what consumers should watch out forWhy heater surface temperature matters more than cabin air temperature in infrared sauna performanceThe importance of low EMF design and non-toxic building materialsHow infrared sauna use may support detoxification, circulation, and skin healthWhy combining far infrared, near infrared, and red light creates a more complete wellness experienceThe role of red light and near infrared light in supporting collagen, skin repair, and cellular energyWhy Connie considers sauna use one of the best whole-body longevity tools availableResearch discussed around cardiovascular health, blood pressure, nervous system support, and long-term wellnessHow sauna can support a shift from sympathetic stress mode into a more parasympathetic, restorative stateConnie’s approach to habit stacking and using sauna time intentionallyThe differences between Sunlighten’s Solo, Signature, Amplify, and mPulse collectionsWhy the Sunlighten red light panel and mask may be useful tools for skin, recovery, and wellness routinesResources & LinksSunlighten: https://www.sunlighten.com/Connie Zack LinkedIn: https://www.linkedin.com/in/conniezack/📲 Follow McCall McPherson & Modern Thyroid and Wellness💻 Website: modernthyroidclinic.com🐦 X / Twitter: @thyroidexpert🌐 Host Website: mccallmcpherson.com📺 YouTube: McCall McPherson Channel📘 Facebook: McCall McPherson PAC📸 Instagram: @mccallmcphersonpa

What if the reason many thyroid patients struggle is not the condition itself, but how thyroid care is traditionally approached?In this episode of Modern Thyroid and Wellness, McCall McPherson continues the clinician interview series by introducing three more members of the Modern Thyroid Clinic team: Yari Tran, PA-C, Melody Volz, FNP-C, and Nikki Abelow, APRN. Yari earned her psychology degree at Texas A&M and her physician assistant training at Texas Tech, then began in neurosurgery and pain management before shifting into root-cause thyroid and hormone care. Melody trained at the University of Texas at Austin, became a family nurse practitioner in 2014, and brings both clinical expertise and her own history of hypothyroidism and Hashimoto’s to patient care. Nikki, a Florida-based APRN, graduated from Chamberlain University in 2019 after working as a cardiac nurse and later pursued additional functional medicine training through the School of Applied Functional Medicine.This conversation gives listeners a behind-the-scenes look at how each clinician found their way into medicine, what changed their perspective on conventional thyroid care, and why they are so passionate about individualized treatment. Across all three interviews, a shared theme emerges: thyroid care is rarely simple, TSH alone is not enough, and patients deserve to feel seen, heard, and fully supported.Note About This EpisodeHillary Mayers was originally scheduled to appear in this episode. Due to a technical error during recording and editing, we were unable to include her segment. We greatly value Hillary’s insights and expertise, and she will be featured in a dedicated solo episode in the future. Thank you for your understanding.We truly appreciate your patience and support as we navigate this, and we’re excited to continue bringing you meaningful content in Thursday’s episode.Episode HighlightsWhy this clinician interview series was created and what listeners can expect from future partsYari’s early love of medicine, from bringing an anatomy textbook to kindergarten show-and-tell to becoming a PAThe hormone conference that changed Yari’s entire view of thyroid and chronic symptom careWhy conventional, insurance-based models make nuanced thyroid treatment difficultYari’s take on one major misconception: thyroid treatment is never one-size-fits-allMelody’s personal story of being diagnosed with hypothyroidism and Hashimoto’s after struggling for answers as a teenagerHow Melody learned firsthand that “normal” labs do not always mean patients feel wellWhy Melody believes thyroid disease is not a life sentence when treated properlyNikki’s path from nursing into functional medicine after her own health challenges led her to question conventional careNikki’s experience of being told a TSH in the 3s was “normal” despite obvious symptomsWhy Nikki is passionate about creating generational health by educating mothers and daughters earlierThe shared message from all three clinicians: patients do better when care is personalized, symptom-aware, and root-cause focusedFun personal details, from Yari’s love of 80s and 90s country to Melody being a twin and Nikki’s love of cruising and AlaskaIn This Episode, You Will LearnWhy many thyroid patients still struggle when care focuses only on TSHHow thyroid symptoms can be real even when standard labs appear “normal”Why full thyroid panels, thoughtful medication choices, and individualized dosing matterThe difference between treating Hashimoto’s and simply replacing thyroid hormoneWhy many women are dismissed with “you’re just tired,” “you’re just a mom,” or “it’s not your thyroid”How proper thyroid care can restore quality of life, energy, confidence, and hopeWhy clinicians who have lived through thyroid dysfunction themselves often bring deeper empathy to careHow Modern Thyroid Clinic’s approach combines education, empowerment, and precisionAbout the CliniciansYari Tran, PA-C began her medical career in neurosurgery and pain management before a hormone education conference reshaped her clinical perspective and sparked her passion for functional thyroid and hormone care. She lives in Austin with her two daughters and enjoys reading, running, and hiking.Melody Volz, FNP-C earned both her BSN and MSN from the University of Texas at Austin and became a certified family nurse practitioner in 2014. Her own experience with hypothyroidism and Hashimoto’s helped shape her patient-centered approach to thyroid and hormone care.Nikki Abelow, APRN is a Florida-based advanced practice registered nurse who came from a cardiac nursing background and later expanded into functional medicine after her own health challenges pushed her to look beyond conventional care. She lives in Florida with her husband and son.📲 Follow McCall McPherson & Modern Thyroid and Wellness💻 Website: modernthyroidclinic.com🐦 X / Twitter: @thyroidexpert🌐 Host Website: mccallmcpherson.com📺 YouTube: McCall McPherson Channel📘 Facebook: McCall McPherson PAC📸 Instagram: @mccallmcphersonpa

What if the reason you still feel tired after optimizing hormones is not your hormones at all?In this episode, Michael sits down with Patrick Sullivan Jr. and Ashley Sullivan, the executive producers behind the new documentary Breaking Big Food: How the American Food System Went Rotten and How It's Being Revived. Their mission to expose the problems within the modern food system began with a deeply personal experience: Patrick’s thyroid cancer diagnosis.Patrick shares the emotional journey of discovering a lump in his neck, navigating multiple biopsies, and ultimately undergoing thyroid surgery. The experience sparked a deeper question that traditional medicine could not answer: why did cancer develop in the first place? That question ultimately led the couple into the world of metabolic health, food quality, and environmental influences on chronic disease.The conversation explores how processed foods, corporate food systems, and environmental toxins may contribute to widespread metabolic dysfunction, thyroid disease, and chronic illness. Patrick and Ashley also share insights from their documentary, including shocking discoveries about how tobacco companies once controlled a large portion of the American food supply.Inspired by their journey, the couple also launched Firefly Organic Coffee and Market, a Scottsdale-based café focused on mold-free organic coffee and nutrient-dense foods. This episode connects the dots between food, stress, environment, and long-term health while highlighting how personal pain can become a powerful purpose. 👤 About the GuestsPatrick Sullivan Jr.Patrick Sullivan Jr. is an entrepreneur, filmmaker, and thyroid cancer survivor. After his diagnosis over a decade ago, he began exploring the deeper connections between food, environmental exposures, stress, and metabolic health. Patrick is the executive producer of the documentary Breaking Big Food, which investigates the history of the American food system and its impact on chronic disease.Ashley SullivanAshley Sullivan is a business owner, producer, and wellness advocate who works alongside Patrick in both their film and food initiatives. She co-produced Breaking Big Food and co-founded Firefly Organic Coffee and Market, a Scottsdale café dedicated to providing organic, mold-free coffee and access to nutrient-dense foods that support better health. 🔑 Key Topics CoveredPatrick’s thyroid cancer diagnosis and the stress of navigating uncertain test resultsWhy thyroid cancer often raises deeper questions about environmental and lifestyle factorsThe emotional and physical impact of living with a cancer diagnosisThe influence of chronic stress on metabolic and thyroid healthHow food quality can influence inflammation and long-term disease riskThe surprising history of tobacco companies acquiring major food brands in the 1980sWhy processed foods are engineered to be addictiveThe connection between metabolic dysfunction and the modern food systemSmall dietary changes that can dramatically improve health outcomesThe inspiration behind the documentary Breaking Big FoodLaunching Firefly Organic Coffee and Market to provide clean food optionsThe issue of mold contamination in coffee and why sourcing matters🎬 Resources and Links Mentioned📺 Watch the DocumentaryBreaking Big Food: How the American Food System Went Rotten and How It's Being RevivedAvailable on Apple TV and Amazon Prime Video📲 Follow McCall McPherson & Modern Thyroid and Wellness💻 Website: modernthyroidclinic.com🐦 X / Twitter: @thyroidexpert🌐 Host Website: mccallmcpherson.com📺 YouTube: McCall McPherson Channel📘 Facebook: McCall McPherson PAC📸 Instagram: @mccallmcphersonpa

What if the reason many thyroid patients still feel unwell is not their labs, but how their symptoms are being interpreted?Today’s episode is the first installment of a multi-part clinician interview series on the Modern Thyroid Clinic podcast. Host McCall McPherson sits down with three of the clinic’s clinicians, Brandy Valentino, RN, WHNP, CNM, Jessica Strauss, DNP, FNP-C, and Krystal Adams, MSN, FNP-BC, LSO, to help listeners get to know the people behind the care.Together, they share their personal journeys into medicine, what led them to thyroid and hormone work, and why individualized, symptom-driven care matters so much for thyroid patients. You will also hear candid conversations about medical gaslighting, obesity bias, the limitations of TSH-only testing, and why many people with “normal labs” still feel miserable. Along the way, the episode brings plenty of personality and behind-the-scenes stories, including Brandy’s early inspiration from a care flight helicopter tour, Jessica’s love of travel and Disney, and Krystal’s surprising connection to a military dolphin trainer story.Episode HighlightsWhy this clinician interview series was created and what to expect in future partsBrandy’s story of being inspired in third grade by a care flight helicopter visitBrandy’s background in labor and delivery, women’s health, and midwiferyHow Brandy transitioned into thyroid care after questioning algorithm-based hormone protocolsWhat Brandy finds most meaningful: the “fast forward” moment when patients get their lives backThe misconception Brandy wants patients to understand: thyroid care is highly individualizedThe reality of being dismissed with “it’s not your thyroid” and why that harms patientsJessica’s personal experience of thyroid symptoms despite consistently “normal” TSHHow Jessica’s training included a more nuanced view beyond basic thyroid teachingA powerful story: antibodies rising dramatically and an endocrinology response of “nothing different to do”How obesity bias impacts care and how it can delay diagnosis and worsen outcomesWhy Modern Thyroid Clinic prioritizes listening, full panels, and patient empowermentJessica’s favorite part of the work: celebrating symptom improvement and life restorationJessica’s view: thyroid issues are not a life sentence when treated appropriatelyKrystal’s early foundation in prevention-focused care and integrative medicineHow Krystal’s friend’s thyroid storm and Graves disease helped pull her deeper into thyroid workWhy hormones and thyroid must be addressed together, especially in midlifeKrystal’s experience diagnosing Hashimoto’s in patients who were never told they had it, even after decadesCommon misunderstandings: antibodies matter, T3 can be life-changing, lifestyle can amplify resultsA striking example: a patient’s TSH dropping from around 100 to under 1 with treatment and labs normalizing quicklyBehind-the-scenes fun: Hawaii, a huge family, and the military dolphin trainer storyIn This Episode, You Will LearnWhy many thyroid patients still struggle when care focuses only on TSHHow thyroid symptoms can be real even when labs appear “normal” on limited testingWhy full thyroid panels and antibody tracking can change clinical decisions and outcomesHow gaslighting and obesity bias show up in real healthcare settingsWhy thyroid and hormones often need to be treated together for best resultsWhat “no one size fits all” really means in thyroid medication and dosingWhy treating symptoms alongside labs can restore quality of lifeHow thyroid support can become the foundation that makes lifestyle change possibleWhy patients deserve to feel well in every season of life, including perimenopause and menopauseHow Modern Thyroid Clinic approaches education, empowerment, and individualized careFeatured CliniciansBrandy Valentino, RN, WHNP, CNMBrandy shares her path from labor and delivery and midwifery into thyroid care, including how questioning cookie-cutter algorithms led her to a more personalized, patient-centered approach.Jessica Strauss, DNP, FNP-CJessica explains how her own symptoms and years of being dismissed shaped her approach to care, and why she is passionate about full thyroid evaluation, belief in patient symptoms, and restoring hope.Krystal Adams, MSN, FNP-BC, LSOKrystal describes her prevention-focused background, her love of hormone care, and how combining hormone and thyroid optimization can help patients finally feel normal again.📲 Follow McCall McPherson & Modern Thyroid and Wellness💻 Website: modernthyroidclinic.com🐦 X / Twitter: @thyroidexpert🌐 Host Website: mccallmcpherson.com📺 YouTube: McCall McPherson Channel📘 Facebook: McCall McPherson PAC📸 Instagram: @mccallmcphersonpa

What if GLP-1 medications work best not at higher doses, but with slower, personalized microdosing?In this solo Ask Me Anything episode of Modern Thyroid and Wellness, McCall McPherson answers your most pressing questions about GLP-1 medications. Drawing from clinical experience and current research, she breaks down how these medications actually work, why microdosing matters, and how to minimize side effects while protecting metabolism, muscle, and long-term health.McCall explores the connection between GLP-1s and inflammation, thyroid function, fertility, cancer risk, longevity, and metabolic recovery. She also explains when patients may need long-term therapy, how to successfully come off these medications, and why slow, personalized dosing produces the safest and most sustainable results.If you’ve heard conflicting information about GLP-1s, this episode offers clarity, context, and a clinically grounded perspective on how to use them wisely. Key Topics CoveredWhat GLP-1 medications are and how they work beyond appetite suppressionWhy microdosing leads to better outcomes and fewer side effectsThe real cause of most GLP-1 side effects: rapid weight loss and under-fuelingSemaglutide vs. tirzepatide and how to choose the right optionWhy most patients do not need to stay on GLP-1s foreverHow improving insulin sensitivity and leptin resistance supports long-term weight maintenanceWhen long-term GLP-1 use may be appropriate, especially for chronic inflammationStrategies for tapering off successfully, including slow dose reduction and metabolic supportThe relationship between GLP-1s and thyroid function, Hashimoto’s antibodies, and medication adjustmentsPregnancy, fertility, and breastfeeding recommendationsWhy weight loss timelines vary based on thyroid health and metabolic statusThe role of treatment breaks in maintaining medication effectiveness GLP-1 Benefits You May Not Know AboutPowerful anti-inflammatory effects through multiple biological pathwaysReduced risk of several cancers, including breast, lung, colorectal, and pancreaticLower risk of major cardiovascular events such as heart attack and strokeReduced all-cause mortality by approximately 15–20%Improvements in metabolic health, blood sugar control, and insulin sensitivityPotential benefits for compulsive behaviors, cravings, and addiction patterns Common Concerns AddressedHair loss and muscle loss Usually caused by rapid weight loss or inadequate protein and nutrient intake, not the medication itself.Thyroid cancer risk Human studies have not shown an increased risk for common thyroid cancers. GLP-1s should be avoided only in patients with a history of medullary thyroid carcinoma or MEN syndromes.Thyroid medication changes Weight loss and metabolic shifts often require dose adjustments over time. Lifestyle Strategies That Support SuccessPrioritize strength training to preserve muscle and metabolic rateFocus on adequate protein and micronutrient intakeAvoid aggressive calorie restrictionIncorporate walking and low-stress movementAddress thyroid optimization and metabolic health before expecting rapid results📲 Follow McCall McPherson & Modern Thyroid and Wellness💻 Website: modernthyroidclinic.com🐦 X / Twitter: @thyroidexpert🌐 Host Website: mccallmcpherson.com📺 YouTube: McCall McPherson Channel📘 Facebook: McCall McPherson PAC📸 Instagram: @mccallmcphersonpa

What if the answers to chronic illness are often missed because medicine focuses on symptoms instead of root causes?In this deeply personal and powerful episode of Modern Thyroid and Wellness, McCall McPherson welcomes Dr. Aaron Hartman, functional medicine physician, clinical researcher, and author of UnCurable: From Hopeless Diagnosis to Defying All Odds. Dr. Hartman shares how his daughter’s complex medical challenges transformed his understanding of healthcare, pushing him beyond conventional medicine and into a root-cause, patient-centered approach.The conversation explores medical blind spots, medical gaslighting, and the limitations of symptom-focused care. Dr. Hartman explains why chronic illness often requires patients to become active participants in their health journey and how functional medicine can help uncover overlooked root causes. He also discusses environmental toxins, tick-borne illness, mold exposure, hypermobility syndromes, and the importance of personalized care strategies.This episode offers hope, validation, and practical insight for anyone who has felt dismissed, misunderstood, or stuck searching for answers. Episode HighlightsDr. Hartman’s journey from conventional medicine to functional medicine through his daughter’s health challengesThe concept of medical blind spots and how healthcare recommendations evolve over timeWhy chronic illness often requires individualized and investigative careUnderstanding medical gaslighting and why patients, especially women, are frequently dismissedHow the healthcare system prioritizes acute care over chronic disease prevention and managementWhy patients must become the “CEO” of their own healthThe importance of building a collaborative healthcare teamEnvironmental and chronic illness drivers including mold exposure, Lyme disease, and bio-toxin illnessThe connection between hypermobility, autoimmune conditions, neurodivergence, and chronic health symptomsThe role of lifestyle fundamentals including nutrition, sleep, environment, and relationships in healingHow faith, resilience, and patient-provider trust influence recovery and health outcomesWhy listening to patients is often the most powerful diagnostic tool in medicineHow education empowers patients to make informed healthcare decisionsWhy modern medicine requires balancing conventional and functional approachesIn This Episode, You Will LearnWhy chronic illness often exists in gaps between medical specialtiesHow conventional medicine can miss environmental, infectious, and systemic contributors to illnessThe importance of detailed patient history and long-term provider relationshipsHow environmental toxins and water-damaged buildings can contribute to chronic inflammationWhy tick-borne illnesses may be significantly underdiagnosedThe connection between hypermobility syndromes and complex chronic illness patternsHow medical culture and time constraints can unintentionally limit patient careWhy early dismissal of symptoms can delay diagnoses by yearsThe importance of patient education and proactive health ownershipHow foundational health practices often provide the strongest healing support About Dr. Aaron Hartman:Dr. Aaron Hartman is a functional medicine physician, clinical researcher, and founder of the Virginia Research Center. He has participated in over 70 clinical research studies and serves as an Assistant Clinical Professor at Virginia Commonwealth University (VCU).His work focuses on helping patients identify lifestyle and environmental leverage points that support the body’s natural ability to heal. His book, UnCurable, shares his family’s journey navigating chronic illness while providing practical strategies for patients seeking answers beyond conventional care.📖 About UnCurableUnCurable blends memoir and medicine, weaving personal family experience with decades of clinical insight. It challenges conventional models of chronic illness and empowers patients to pursue healing through personalized, root cause focused care.Discover the book:📘 Amazon: UnCurable: From Hopeless Diagnosis to Defying All Odds🎧 Audible: https://www.audible.com/pd/UnCurable-Audiobook/B0G4NNPSF2?srsltid=AfmBOoqovf36lmHnQPTbTM9YhGlzJ40P8kCAnzrGjXknVrygXQ7az_y4Follow Dr. Aaron Hartman and Richmond Integrative & Functional MedicineWebsite: https://richmondfunctionalmedicine.com/YouTube: @AaronHartmanMD📲 Follow McCall McPherson & Modern Thyroid and Wellness💻 Website: modernthyroidclinic.com🐦 X / Twitter: @thyroidexpert🌐 Host Website: mccallmcpherson.com📺 YouTube: McCall McPherson Channel📘 Facebook: McCall McPherson PAC📸 Instagram: @mccallmcphersonpa

What if the reason thyroid eye disease feels so confusing is because it requires more than one specialist to treat it well?In this episode of Modern Thyroid and Wellness, host McCall McPherson sits down with Dr. Sean Paul, a board-certified oculoplastic and orbital surgeon based in Austin, Texas, to explore thyroid eye disease (TED) from diagnosis through advanced treatment.Dr. Paul explains what thyroid eye disease really is, why it is often underdiagnosed, and how it impacts both vision and quality of life. The conversation covers medical therapy, biologic treatments like Tepezza (teprotumumab), surgical options, and the importance of a multidisciplinary approach. They also discuss emerging trends in aesthetic and reconstructive eye surgery, regenerative skin treatments, and why long-term maintenance and skin health matter just as much as procedures.This episode offers clarity, hope, and practical guidance for anyone struggling with thyroid eye disease, Graves’ disease, or eye changes related to autoimmune thyroid conditions. 👤 About the Guest: Dr. Sean PaulDr. Sean Paul is a fellowship-trained oculoplastic and orbital surgeon and the founder of Austin Face and Body. He completed medical school in San Antonio and trained extensively in ophthalmology and oculoplastic surgery, with early experience in reconstructive eye surgery at Brooke Army Medical Center during Operation Iraqi Freedom.Dr. Paul specializes in thyroid eye disease, orbital inflammation, eyelid reconstruction, and aesthetic facial surgery, blending functional restoration with natural-appearing cosmetic outcomes. His practice focuses on both medical necessity and patient confidence. 🔑 Key Topics CoveredWhat thyroid eye disease is and why it is an autoimmune orbital inflammatory conditionThe connection between TED and Graves’ disease, hyperthyroidism, and hypothyroidismEarly and subtle symptoms of thyroid eye disease, including dryness, redness, eyelid asymmetry, and double visionWhy thyroid eye disease is frequently underdiagnosedThe difference between active inflammatory disease and “quiet” or chronic diseaseThe emotional and social impact of eye changes in Graves’ diseaseHow oculoplastic and orbital surgeons are trained and what makes them different from general ophthalmologistsMedical treatment options including steroids, radiation, and biologic therapyTepezza (teprotumumab): how it works, how it is administered, and potential side effects including hearing changesSurgical options for thyroid eye disease:Orbital decompression (fat and bone)Strabismus (eye muscle) surgeryEyelid retraction repairTypical recovery timelines and why disease stability matters before surgeryThe role of inflammation control, thyroid antibodies, and IGF-1 receptor pathwaysCosmetic and reconstructive trends in eyelid and facial surgeryWhy “natural” results and long-term maintenance are now the standardThe growing role of regenerative treatments, lasers, and skin health in facial rejuvenation 🧠 Important Medical Clarifications (Fact-Checked)The biologic medication discussed is Tepezza (teprotumumab), not “Topaz”Tepezza targets the IGF-1 receptor, a key pathway involved in thyroid eye disease inflammationTepezza is administered intravenously over a structured infusion scheduleHearing changes are a known side effect and require monitoringOrbital decompression may be urgent if the optic nerve is threatenedSurgery is ideally performed after 3–6 months of disease stability, unless vision is at risk 🌐 Where to Learn MorePractice Website:🌐 https://www.austinfaceandbody.comInstagram:📸 https://www.instagram.com/austinfaceandbody📸 https://www.instagram.com/drseanpaul📍 Locations: Austin, Westlake, Downtown Austin, Round Rock 💻 Virtual consultations available📲 Follow McCall McPherson & Modern Thyroid and Wellness💻 Website: modernthyroidclinic.com🐦 X / Twitter: @thyroidexpert🌐 Host Website: mccallmcpherson.com📺 YouTube: McCall McPherson Channel📘 Facebook: McCall McPherson PAC📸 Instagram: @mccallmcphersonpa

What if healthspan is not about adding more years to life, but protecting strength, energy, and independence as you age?What if the real goal is not just living longer, but staying strong, capable, and energized for decades? In this episode, McCall sits down with Dr. Chris Renna, DO, founder of LifeSpan Medicine, to explore what healthspan really means and why most people start seeking answers only after symptoms have already taken hold.Dr. Renna shares why he shifted from managing diagnoses to building true patient partnerships, and how consistent rhythms in sleep, food, movement, and perspective can change the way you feel day to day. They also discuss practical exercise targets, the role of gratitude and boundaries, and a fascinating look at emerging longevity therapies that may become far more common in the years ahead.Key Discussion PointsWhy Dr. Renna moved from disease management to preventive and longevity-focused careBreaking the doctor-patient hierarchy so patients have agency and ownershipThe most common goal he hears in practice: more energyWhy the body thrives on rhythm: consistent meals, sleep, movement, and mindsetA practical framework: work, family, self-care, and learning to say a kind “no”Healthspan defined: maintaining function over time, not just extending yearsWhy strength training matters now if you want freedom laterCardio basics vs improving VO2 max, including when high intensity intervals make senseThe “100th birthday” vision: driving yourself there, walking in strong, living fullyLongevity tools discussed: vitamin D, omega-3s, multivitamins, and beyondEmerging therapies: plasmapheresis (therapeutic plasma exchange), EBO2, exosomes, stem cell trends, and hyperbaric oxygenWhat may be next: wearables that coach in real time and more personalized longevity guidanceSome Questions We ExploreWhy do so many people feel like they are doing “everything right” but still feel exhausted?What does “healthspan” look like in real life, and how do we measure it?How much exercise is enough if you are busy, tired, and already stretched thin?What habits protect your energy most: food, movement, sleep, or mindset?Which longevity therapies are promising, and which are still evolving?What might preventive medicine look like in 10 years?About the GuestDr. Chris Renna, DO is the founder of LifeSpan Medicine, a preventive and longevity-focused practice designed to help people prevent disease, resolve symptoms, and improve long-term health through personalized concierge support and follow-up. He is a published author and speaker with decades of experience in preventive medicine and health optimization.ResourcesLifeSpan Medicine: https://www.lifespanmedicine.com/📲 Follow McCall McPherson & Modern Thyroid and Wellness💻 Website: modernthyroidclinic.com🐦 X / Twitter: @thyroidexpert🌐 Host Website: mccallmcpherson.com📺 YouTube: McCall McPherson Channel📘 Facebook: McCall McPherson PAC📸 Instagram: @mccallmcphersonpa

What if insulin resistance is quietly driving inflammation, weight gain, and thyroid dysfunction years before blood sugar ever looks abnormal?In this episode of Modern Thyroid and Wellness, McCall McPherson sits down with endocrinologist Dr. Alessia Roehnelt for an in-depth discussion on insulin resistance and why it is one of the most important predictors of long-term health outcomes.Dr. Roehnelt explains how insulin functions in the body, what happens when insulin resistance develops, and why chronically elevated insulin drives inflammation, weight gain, metabolic dysfunction, and disease progression. The conversation highlights the strong bidirectional relationship between insulin resistance and thyroid dysfunction, including how each can worsen the other when left unaddressed.Together, they explore early warning signs of insulin resistance, optimal lab markers, lifestyle interventions, and when medications like metformin or GLP-1 agonists may be appropriate. This episode emphasizes early detection, individualized care, and the importance of addressing inflammation to restore metabolic health.🔑 Key Topics CoveredWhat insulin resistance is and how it develops over timeHow insulin drives inflammation and impacts every organ systemWhy insulin resistance often precedes prediabetes and type 2 diabetesCommon physical signs of insulin resistance, including acanthosis nigricansRapid weight fluctuations and carb sensitivity as hallmark symptomsThe bidirectional relationship between insulin resistance and hypothyroidismHow insulin resistance affects thyroid hormone absorption and conversionWhy insulin is often a better early marker than hemoglobin A1cOptimal vs. “normal” lab ranges for fasting glucose, insulin, and A1cWhy lab reference ranges shift with population health trendsThe role of vitamin D as both a vitamin and hormone in metabolic health🧪 Labs & Metrics DiscussedFasting insulin (ideally low with normal glucose)Fasting blood glucose (optimal range below the high 90s)Hemoglobin A1c for long-term glucose trendsLiver enzymes (AST, ALT) and their link to fatty liverThyroid function tests and thyroid antibodiesVitamin D levels and their systemic impact🏃‍♀️ Lifestyle Strategies for Improving Insulin SensitivityPrioritizing adequate, consistent sleep to lower cortisolStrength and resistance training to improve insulin sensitivityReducing refined carbohydrates and nutrient-poor starchesPairing carbohydrates with protein and fat to blunt insulin spikesUsing continuous glucose monitors to identify personal triggersStrategic use of intermittent fasting for appropriate candidates💊 Medications DiscussedMetforminImproves insulin sensitivityLong-standing safety profileCost-effective option for early interventionGLP-1 receptor agonistsReduce appetite and gastric emptying rateLower liver glucose productionImprove inflammation and insulin signalingPotential benefits for autoimmune and inflammatory conditions🌿 Key TakeawaysInsulin resistance is reversible when caught early“Normal” lab values are not always optimalWeight gain is not simply calories in vs. calories outInflammation is the common thread linking insulin, thyroid disease, and autoimmunityPersonalized, whole-body evaluation leads to better long-term outcomesAdvocacy and early intervention can dramatically change health trajectories📍 Where to Find the Guest• Website & Practice🔗 https://www.endohealthdoc.com — Dr. Roehnelt’s endocrinology and metabolic health practice• Instagram🔗 https://www.instagram.com/endohealthdoc/?hl=en — EndoHealthDoc on Instagram• Facebook 🔗 https://www.facebook.com/alessia.roehnelt— Dr. Roehnelt’s Facebook reels and clips📲 Follow McCall McPherson & Modern Thyroid and Wellness💻 Website: modernthyroidclinic.com🐦 X / Twitter: @thyroidexpert🌐 Host Website: mccallmcpherson.com📺 YouTube: McCall McPherson Channel📘 Facebook: McCall McPherson PAC📸 Instagram: @mccallmcphersonpa

What if the future of weight care is not about losing pounds, but about supporting metabolic health, nourishment, and sustainability?In this episode of Modern Thyroid and Wellness, host McCall McPherson sits down with Ashley Koff, registered dietitian, entrepreneur, and author of the upcoming book Your Best Shot. Together, they unpack the rapidly evolving conversation around GLP-1 hormones, GLP-1 agonist medications, and what true weight health really means.Ashley brings a balanced, evidence-informed perspective to a topic often dominated by extremes. She explains the science behind GLP-1s, clarifies common misconceptions, and emphasizes why medications alone are never the full solution. This conversation centers on personalized nutrition, comprehensive assessment, and moving away from diet culture toward sustainable, root-cause care. 🔑 Key Topics CoveredWhat GLP-1 hormones are and how they function in the bodyHow GLP-1 agonist medications work and what they do and do not addressThe difference between weight loss and weight healthWhy metabolism, muscle, gut health, and nutrient status matterCommon pitfalls of relying solely on medication for weight managementThe importance of comprehensive health assessments before and during GLP-1 useHow diet culture oversimplifies weight and wellbeingWhy personalized nutrition is essential for long-term successSupporting metabolic health without shame, restriction, or extremes 💡 In This Episode, You Will LearnWhy GLP-1 medications are tools, not curesHow weight health differs from scale-based outcomesWhat people often overlook when starting GLP-1 therapyWhy nutrition adequacy and protein intake are criticalHow to protect muscle mass and metabolic functionThe role of individualized care in sustainable weight outcomesWhy one-size-fits-all approaches fail most people🎯 Episode TakeawaysWeight health is about function, not just numbersGLP-1 medications can be helpful, but only within a comprehensive care planNutrition, movement, sleep, and stress all shape metabolic outcomesSustainable health requires personalization, not diet rulesLong-term wellbeing comes from addressing root causes, not chasing quick fixes📘 About the GuestAshley Koff, RD, is a nationally recognized nutrition expert, entrepreneur, and founder of The Better Nutrition Program. She specializes in personalized nutrition, weight health, and helping individuals move beyond diet culture toward sustainable wellbeing. Ashley is the author of the upcoming book Your Best Shot, which explores a smarter, more human approach to weight and health.Connect with Ashley Koff:🌐 Website: https://thebetternutritionprogram.com/about/💼 LinkedIn: https://www.linkedin.com/in/ashley-koff/📲 Follow McCall McPherson & Modern Thyroid and Wellness💻 Website: modernthyroidclinic.com🐦 X / Twitter: @thyroidexpert🌐 Host Website: mccallmcpherson.com📺 YouTube: McCall McPherson Channel📘 Facebook: McCall McPherson PAC📸 Instagram: @mccallmcphersonpa