Dr. Denis O’Donnell is a Professor of Medicine at Queen’s University, Kingston, Ontario. His research is focused on clinical integrative physiology in chronic lung diseases, including the physiological mechanisms of dyspnea and exercise limitation. At Queen’s, he assembled a highly productive research team, which has been successful over the past 30 years, contributing more than 360 papers and 50 chapters to date. The Respiratory Investigation Unit at Queen’s enjoys international recognition for scientific excellence and training in clinical physiology. Dr. O’Donnell has received numerous national and international awards, including the Lifetime Achievement Award from the European Respiratory Society in 2019, in recognition of his contribution to research and education in respiratory diseases.