Juan Carlos Villar is a physician, who trained as specialist in internal medicine at Universidad Industrial de Santander (Bucaramanga, Colombia). He later went to McMaster University in Canada as a research fellow in preventive cardiology, earning a master’s degree and a PhD in Clinical Epidemiology. He is currently a professor of Medicine at Universidad Autónoma de Bucaramanga and a senior researcher at Fundación Cardioinfantil – LaCardio, a 300-bed university hospital, referral center for cardiovascular disease in Bogotá, Colombia. He is ranked as a senior researcher by the Colombian Ministry of Science. He has led the Colombian component of several international clinical trials in perioperative medicine and Chagas disease. He teaches evidence-based medicine and research methods to internal medicine and cardiology residents, and has led or contributed to develop clinical practice guidelines for the Colombian Ministry of Health (in Hypertension) or the PAHO (in Chagas disease).