Puwadol Jaturawutthichai - Shutterstock
The Oxford Vascular Study (OXVASC) began in 2002 and involves University of Oxford staff at the John Radcliffe Hospital collecting detailed health data, blood samples and carrying out scans.
The study has provided vital data on the frequency, time-trends, causes and outcomes of heart attacks, strokes, transient ischaemic attacks (TIAs or mini strokes), aneurysms and other circulatory problems, as well as subsequent complications, such as dementia.