15 Minutes of This Rewires Your Brain & Metabolism — The Science of Lactate | Dr. Stephanie

Dr. Stephanie Estima gives a masterclass on the often-overlooked role of lactate in how our bodies work during exercise. She’s redefining lactate as a key metabolic signal that can help us get stronger, age better and think sharper. In this solo episode, Dr. Stephanie gets into how lactate is made, how it fuels our energy and why it’s so important when we push ourselves hard. Dr. Stephanie is a big fan of sprinting because it helps us build metabolic power and stay strong, and she’ll also talk about how to use it right and how to recover well. Episode Overview: (0:00) Introduction — Lactate Is Not the Enemy (2:15) Welcome & Episode Roadmap (4:30) The Myth: How We Got Lactate Wrong (7:00) What Lactate Actually Is (The Biochemistry) (9:30) Why Lactate Forms Even With Oxygen (15:00) The Gear Analogy — Don't Be Metabolically Polite (18:00) Metabolic Flexibility & Why HIIT Matters (22:00) How to Dose Your Sprints (Beginner to Advanced) (24:30) The Lactate Shuttle — Redistribution, Not Waste (28:30) Mitochondrial Biogenesis & Longevity Signals (32:00) Lactate and Your Brain — BDNF, Fog & Cognitive Edge (38:30) Dosing, Recovery Rules & Programming (46:00) Closing — You Are Remodelling Yourself Resources mentioned in this episode: https://drstephanieestima.com/podcasts/ep469 We couldn’t do it without our sponsors: BON CHARGE - Achieve glowing skin, gain more energy, and uplevel your recovery practice with a suite of red light products. Get 15% off at https://boncharge.com/better with code BETTER. MUSE - Train your nervous system with feedback, the same way you’d train muscles with resistance. If you are ready to unlock your brain's potential, go to https://choosemuse.com/BETTER or use code BETTER at checkout to get started. PIQUE LIFE - If you want to redefine your afternoon and evening rituals and still feel like yourself the next day, you can get 10% off at https://piquelife.com/better TIMELINE   - Timeline’s clinically proven formula is now available at a new, lower price . Mitopure now starts at $79, when you go to https://timelinenutrition.com/better with code BETTER. ****************************P.S. When you're ready, here are two ways Dr. Stephanie can help you:Subscribe: The Mini Pause — My weekly newsletter packed with the most actionable, evidence-based tools for women 40+ to thrive in midlife.Build Muscle: LIFT — My progressive strength training program designed for women in midlife. Form-focused, joint-friendly, and built for real results. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.