This seminar was chaired by Dr Chris Gale, Associate Professor of Cardiovascular Health Sciences and Honorary Consultant Cardiologist. First talk given by Dr Marlous Hall: "#datasaveslives: Examples from the UK's national register of acute myocardial infarction". Second talk given by Miss T. Bernadette Dondo: "Beta blocker use and mortality among hospital survivors of acute myocardial infarction: a nationwide cohort study". Main talk given by Professor Kazem Rahimi: "The hype or reality of big data to improve cardiovascular health".