Urban Alehagen is a professor of cardiology from the Department of Medical and Health Sciences at Linköping University, Linköping, Sweden. He is one of Sweden’s most experienced cardiologists. He headed the KiSel-10 research team, and he was the principal investigator for the Kisel-10 study, in which the effect of supplementation with selenium and coenzyme Q10 was studied. He has written extensively about the special biological interrelationship of coenzyme Q10 and selenium in the prevention of heart disease. His research interests include heart failure, cardiology, cardiac function, cardiovascular disease, and echocardiography.