Brian Mackenzie: Respiratory Physiology, the Stress Response, and the Importance of CO2

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In this episode of the Smarter Not Harder Podcast, our guest Brian Mackenzie joins our host Dr. Scott Sherr to give one-cent solutions to life's $64,000 questions that include: Why is CO2 so important in respiratory physiology? How does building up CO2 tolerance affect not only your parasympathetic and sympathetic nervous systems, but your aerobic and anaerobic metabolism as well? What is the importance of nasal breathing? Brian is the founder and CEO of SHIFT, a comprehensive and adaptive training program that focuses on breath control as a primary tool for improving performance. He is also the president and co-founder of the Health and Human Performance Foundation, a nonprofit…