Doug Casa suffered an exertional heat stroke while running a 10-K race in 1985, which sparked his passion for the study of exertional heat stroke. This experience motivated what has become his life’s cause—the study of exertional heat stroke, heat illnesses, hydration, and preventing sudden death in sport. He has published more than 120 peer-reviewed publications and presented more than 300 times on subjects related to exertional heat stroke, heat-related illnesses, preventing sudden death in sport, and hydration. He has been a lead or co-author on numerous sports medicine (American College of Sports Medicine, National Athletic Trainers’ Association) position statements related to heat illness and hydration. He is an Associate Editor of the Journal of Athletic Training, and is on the Editorial Board for Current Sports Medicine Reports, Journal of Sport Rehabilitation, and the Journal of Strength and Conditioning Research. Casa earned his Bachelor’s degree in Biology from Allegheny College in 1990, his Master’s degree in Athletic Training from the University of Florida in 1993, and his Doctorate in Exercise Physiology from the University of Connecticut in 1997.