In this episode, I break down my Physiologic Flexibility Certification — an advanced course designed to help you build a more adaptable, resilient body. I’ll walk you through the four key pillars of human performance: temperature regulation, pH balance, fuel use, and air/CO₂ control. You’ll hear how this cert expands on my Flex Diet Certification to improve recovery, strength, and overall health using practical strategies and modern wearable tech. Enrollment is open October 13–20, 2025 . Sponsor: Physiologic Flexibility Certification Course open Monday, Oct. 13 to Monday, Oct. 20: https://miketnelsons.samcart.com/products/physflex/ Triphasic 2 book now available! Go to https://triphasic2.com/ Episode Chapters: 01:09 Metabolic Flexibility vs. Physiologic Flexibility 02:42 Four Pillars of Physiologic Flexibility 06:07 Deep Dive into Temperature Regulation 07:19 Understanding pH and Buffering Systems 09:35 Fuel Systems: Carbohydrates and Ketones 11:58 Air and CO2 Regulation 15:06 Practical Applications and Technology 30:26 Conclusion and Certification Details Get In Touch with Dr Mike: Instagram: https://www.instagram.com/drmiketnelson/ YouTube: https://www.youtube.com/channel/UCn1aTbQqHglfNrENPm0GTpg Email: https://miketnelson.com/contact-us/