SCP Podcast Episode 203: Brian Mackenzie – Human Performance Specialist

May 28, 2021

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In this episode, we talk with Human Performance Specialist, Brian Mackenzie, founder & CEO of UnScared Inc/SH/FT, and co-founder & president of Health and Human Performance Foundation. 

Brian Mackenzie is an innovator in human performance on stress adaptation and a pioneer in the development and application of custom protocols to optimize human health and performance. His work harnesses and integrates respiratory, movement, strength, conditioning and endurance-based training approaches to elicit unprecedented positive results. His protocols have been used to accelerate and raise both mental and physical performance in world-class Olympic and professional athletes, top executives, and elite military operators, as well as to improve the health for people suffering from various chronic and pathological issues.

Brian’s work is voluntarily and repeatedly subjected to rigorous 3rd party scientific testing, re-testing and improvement, at top institutions. He has been contracted and his work involved in research projects at Stanford University School of Medicine, California State University Fullerton, and San Francisco State University.

Brian has also co-authored the book Power Speed Endurance, The New York Times Best Seller UnBreakable Runner, and UnPlugged, which assesses the integration of emergent technology and human performance.

Highlights of this podcast include:

  • Pain
  • Behavior change and misaligned energy
  • Breathing and Autism
  • Aerobic efficiency
  • Evolution of medicine and technology
  • Breathing vs oxygen consumption
  • Over breathing and sympathetic dominance
  • Aerobic and Anaerobic breathing and metabolic disorders
  • And much more

Follow Brian on Instagram @_brianmackenzie. Learn more about his book and his work at