Dr. Mike T Nelson is a researcher with a PhD in exercise physiology and a master's degree in mechanical engineering, Mike walked us through the intricate details of heart rate variability (HRV). Tapping into his expertise, we discussed its potential in predicting overtraining in athletes and the challenges involved in its accurate measurement. But that's not all! We also ventured into the mysterious world of fasting, exploring its potential benefits and the difficulties of assessing its effects scientifically.Mike T. Nelson, PhD, MSME, CSCS, CISSN, is a research fanatic who specializes in metabolic flexibility, heart rate variability, and human performance.  He has spent 20 years of his life learning how the human body works.  He has a PhD in Exercise Physiology, and a MS in Mechanical Engineering (biomechanics).  He's an Associate Professor at the Carrick Institute, university instructor at Rocky Mountain University, creator of the Flex Diet Certification & Physiologic Flexibility Cert and a Human Optimization Specialist with the Special Forces Experience.  He also is the Research and Human Performance Science Advisor at Tecton -makers of a unique ketone ester, and performance analysis with Rapid Health.  He has published research in both physiology and engineering peer-reviewed journals.  He's even been called in to share his techniques with top military agencies.  In his free time he enjoys spending time with his wife, lifting odd objects, going to metal concerts, and kiteboarding.  Find out more at www.miketnelson.comAbout the ShowWe cover all things related to sports science, nutrition, and performance. The Sports Science Dudes represent the opinions of the hosts and guests and are not the official opinions of the International Society of Sports Nutrition (ISSN), the Society for Sports Neuroscience, or Nova Southeastern University. The advice provided on this show should not be construed as medical advice and is purely an educational forum.Hosted by Jose Antonio PhDDr. Antonio is the co-founder and CEO of the International Society of Sports Nutrition and the co-founder of the Society for Sports Neuroscience, www.issn.net. Dr. Antonio has over 120 peer-reviewed publications and 16 books. He is a Professor at Nova Southeastern University, Davie, Florida in the Department of Health and Human Performance.Twitter: @JoseAntonioPhDInstagram: the_issn and supphdCo-host Anthony Ricci EdDDr Ricci is an expert on Fight Sports and is currently an Assistant Professor at Nova Southeastern University in Davie Florida in the Department of Health and Human Performance.Instagram: sportpsy_sci_doc and fightshape_ricci