Biographical Info Holden MacRae, Ph.D., is a Professor Emeritus of Sports Medicine in the Natural Science Division at Pepperdine University. He received his B.A. in Physical Education and English from Stellenbosch University (South Africa), M.Ed. in Kinesiology from the University of Texas at Austin, and Ph.D. in Physiology from the University of Cape Town Medical School (South Africa). He has published and presented articles at the national and international level, and has received grant funding from Government as well as Industry for research in the area of human health and performance. His research is in the area of exercise metabolism and the science and neurobiology of sports performance, as well as in the area of exercise and aging. He has consulted on and been a co-investigator on research projects related to aging issues, elite athlete performance, as well as military performance, and is currently focused on implementing high performance support for Esports athletes. He has also successfully designed and conducted clinical exercise performance trials for industry, focusing on technology as well as nutritional interventions to optimize human performance. He has extensive experience designing and implementing exercise training and conditioning programs for athletes and individuals in a variety of settings, as well as in research projects. He has taught at the undergraduate level for 30+ years, specifically in the subject areas of physiology of exercise and the role of exercise/nutrition/lifestyle in chronic disease prevention and management. He is a certified Exercise Physiologist (American College of Sports Medicine) and certified Level 1 Trainer (CrossFit).