Lars Rydén is Senior Professor of Cardiology at the Karolinska Institute, Stockholm, Sweden. He specializes in internal medicine and cardiology, with a focus on arrhythmias, cardiac pacing, heart failure and cardiovascular disease related to diabetes. Professor Rydén has published more than 700 scientific papers. Lars Rydén is Dr h.c. at Katowice University, Katowice, Poland and an honorary member of the Royal College of Physicians, London, UK, and several national cardiac societies. Professor Rydén was the President of the Swedish Cardiac Society and chaired the Scientific Board of the Swedish Heart Lung Foundation. He was the President of the European Society of Cardiology, and has served on the Board of the World Heart Federation. He chaired Alert (a system for identification and early assessment concerning new methods in healthcare) for the Swedish Council on Technology Assessment in Health Care. Lars Rydén has chaired numerous expert groups working to reduce the burden of cardiovascular disease in Europe in collaboration with the European Society of Cardiology and the European Commission. Professor Rydén chaired the Task Forces that prepared the 2007 and 2013 ESC/EASD Guidelines for Diabetes, Prediabetes and Cardiovascular Disease.