Prof. Dr. Thomas Kenner, M.D., Dr. h.c. mult. will be remembered at the occasion of 90th years of birth as an exceptional expert in physiology of cardiovascular system medicine, professor emeritus of Karl-Franzens-Universität Austria. The personality of Prof. Kenner was earlier described Noninvasive Methods of Cardiology 2015, 2017 and 2019. Prof. Thomas Kenner was exceptional physiologist who focused primarily on physiology of cardiovascular system, covering diverse areas such as aerodynamic properties of arteries, chronobiology of cardiovascular system, pathophysiology and incidence of sudden infant death syndrome, physiology and monitoring of physiological functions in space