The global population is ageing. The burden of chronic diseases is rising rapidly. Healthcare services are under huge pressure to control costs. The empowered patient requires an active role in managing his or her health. Everyday items are transformed into smart connected objects. Consumers manage their lifestyle with smartphone apps, monitors and social media. Good mobile access is ubiquitous. Vast amounts of data are becoming available for large scale analysis; disparate data sets are combined to create new insights and services. Tools for creating Big Data applications have become available at low cost. The concurrence of all the above is catalysing technological innovation in healthcare.