Holger Schünemann is professor in the Departments of Health Research Methods, Evidence, and Impact and of Medicine at McMaster University, widely considered the birthplace of evidence-based health care, where he was department chair from 2009 to 2019. He graduated from the Medical School of Hannover (1993 & Dr. med. in 1994) and trained in lung biology, epidemiology, internal medicine and preventive medicine/public health at the University at Buffalo, State of New York (M.Sc. Epidemiology in 1997; Ph.D. Epidemiology & Community Medicine in 2000). He is co-chair of the GRADE working group (www.gradeworkinggroup.org) and director of Cochrane Canada and the McMaster GRADE centre. Maintaining an active internal medicine practice fulfils his passion for patient care and ensures his research is people oriented. He is an author of over 600 peer-reviewed publications (h-index 134/93 google scholar/web of science) and among the 1000 most cited scientists of all times (www.webometrics.info).