Dr. Ryan Dunn is a postdoctoral scholar in thermal physiology at The Pennsylvania State University. He received his bachelor's degree at Robert Gordon University in the United Kingdom, his master's degree at Loughborough University in the United Kingdom, and his PhD in Exercise Physiology at Texas Tech University. His areas of expertise are focused on heat adaptation and mitigation strategies (e.g., heat acclimation, cooling interventions), as well as optimizing hydration strategies and fluid balance under heat stress. His current research examines how hot compared to thermoneutral exercise training affects gut microbiota responses in male and female endurance athletes, as well as establishing critical environmental limits in aging workforces.