In this essential continuation of our gut health series, board-certified internal medicine physician Dr. Karen McCarthy returns to guide us through the most critical and often overlooked threats to your digestive system. We begin with a deep dive into the pervasive toxin glyphosate, the main ingredient in Roundup, and how this "horrible poison" fundamentally disrupts your gut microbiome, weakens the intestinal barrier (leading to leaky gut), and contributes to systemic inflammation. You will learn why certain foods, particularly oats and wheat, should always be bought organic, and discover simple, yet powerful detoxification methods, including a surprising supplement—glycine—that helps force glyphosate out of your system.

We then tackle the epidemic of small intestinal overgrowth: SIBO (Bacterial Overgrowth) and the newly understood SIFO (Fungal Overgrowth). Find out which common medications and lifestyle factors drive these uncomfortable conditions, causing bloating, nutrient deficiencies, and digestive discomfort. Dr. McCarthy shares details on a powerful, custom-fermented yogurt that has been shown in studies to normalize SIBO breath tests and outperform standard antibiotics. Finally, we explore the jaw-dropping connections between your mouth biome, overall health, and sleep. Discover how something as simple as mouthwash can raise your blood pressure and how poor oral hygiene is linked to diseases from allergies to colon cancer. Tune in to equip yourself with practical, science-backed tools for a complete gut health overhaul.

Most people think of gut health only in terms of digestion, but the conversation has radically changed. In this episode of our gut health series, we welcome board-certified internal medicine specialist Dr. Karen McCarthy to unpack the latest research. We dive deep into why your gut is the epicenter of your health—influencing everything from your mood and cognition to your cardiovascular health and cancer risk. Discover the shocking truth about modern toxins like microplastics, emulsifiers, and genetically modified wheat, and learn Dr. McCarthy’s best diet strategies (hint: the Mediterranean diet still leads the pack) for restoring a diverse and resilient gut microbiome. Start reading to find out how to defend your gut barrier and transform your whole-body health.

You’ve heard of rehabilitation—the crucial recovery phase after surgery. But what if you could fundamentally improve your surgical outcome before you even step into the operating room? Welcome to the powerful, often-overlooked world of prehabilitation. Dr. Dennis McCarthy dives deep into this multifaceted approach, revealing why getting stronger before surgery is the new standard for reducing post-operative complications and accelerating your healing. Learn how optimizing your nutrition, boosting cardiopulmonary fitness, and managing anxiety can give you the muscle reserves and resilience needed to make your recovery faster, smoother, and more successful.

We often think of gut health only in terms of digestion and bowel function, but the balance of bacteria in your microbiome—or gut flora—actually affects everything from your mood to your joints. In this first part of our series, Dr. Karen McCarthy dives into the foundational question: What does gut health truly refer to, and why is it essential? They explore the concept of gut dysbiosis, where a bad bacteria takeover leads to "leaky gut," allowing large protein fragments and toxins to leak into the bloodstream. This triggers a widespread inflammatory cascade linked to chronic conditions, including autoimmune diseases like lupus and rheumatoid arthritis, as well as neurodegenerative disorders like Alzheimer’s and Parkinson’s disease. Learn how this crucial gut-brain connection works and why prioritizing dietary fiber, prebiotics, and probiotics is the best way to strengthen your gut barrier and protect your long-term health.

You grab a bottle of supplements, read the label, and see terms like "1,000 milligrams" and "third-party tested." But have you ever wondered what those labels actually mean? Here's the reality: Supplements aren't regulated like prescription drugs, so how do you know what you're taking is what it says you should be taking? We're pulling back the curtain on the supplement industry. Join us as we talk to Montana Wells, a biosystems engineer who is unpacking what goes on behind the scenes, detailing how supplements are engineered, how they're tested, what certifications guarantee, and what you, as a consumer, should be paying attention to. Stop guessing what's in your bottle—discover the truth behind identity, purity, strength, and composition in this essential guide to Supplements 101.

You’ve heard about the importance of heart health, but are you up to date on the latest science? In this deep-dive episode of The Duration Wellness Show, Dr. Khadeeja Esmail, a board-certified cardiologist and associate professor, breaks down the current landscape of cardiovascular prevention. She reveals the most critical, often-missed risk factors, including the link between pregnancy conditions (like preeclampsia) and future heart disease, and the silent dangers of high blood pressure and obesity. Dr. Esmail details the components of your lipid panel you must know—like ApoB and the newly emphasized Lipoprotein(a)—and shares practical, non-medication strategies, from the Mediterranean diet to prioritizing 7-9 hours of sleep. Discover the simple but powerful changes you can make today to stabilize vulnerable plaque and drastically reduce your risk of a heart attack.

Study links/websites:

NIH: Healthy sleep pattern reduce the risk of cardiovascular disease: A 10-year prospective cohort study 

BMJ: Insomnia symptom trajectories and incident cardiovascular disease in older adults: a longitudinal cohort study 

Free Lp(a) testing: Familyheartfamilyheart.org/high-lipoprotein-a

Are you overwhelmed by conflicting advice on strength training? In an age of "information overload," it's easy to get derailed by fears of spiking cortisol or missing out on gains if you're not constantly pushing to muscle failure. But what if the secret to getting stronger, building muscle, and improving longevity isn't about lifting the heaviest weight possible? We sat down with Dr. Lauren Shelton, a doctor of physical therapy and creator of Loa Movement, to cut through the hype. She explains why consistency trumps intensity, how moderate weights can absolutely build muscle and bone density, and why customizing your movement is the key to a sustainable, pain-free fitness journey. Stop stressing about your one-rep max and start focusing on what really moves the needle.