Brian Mackenzie was involved with CrossFit from the very beginning as the SME of CrossFit Endurance. He is an expert in the development and application of custom protocols to optimize human health and performance. His work harnesses and integrates respiratory, movement, strength 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 operators, as well as to improve the health for people suffering from various chronic illnesses. Everyday people have also used Brian’s tools to reduce pathologic stress and to vastly heighten their mental and physical well being and performance. He has gone on to be the Founder & Creative Director of Power Speed Endurance, and the Co-Founder & President of the Health and Human Performance Foundation. We talk about everything from early CrossFit days, to how his methodology has evolved, to his sourdough bread baking practice.

For more info on Brian, follow him on Instagram and Twitter, and check out PSE and follow them on Instagram.