Data is important in healthcare. How a chart is read, if a doctor has time to take a second look at that scan of your chest, and whether there's enough evidence to make you book an appointment with your GP could mean the difference between life and death for you -- and of lower-cost preventative measures and expensive treatments for insurance companies. Currently, we rely on doctors and nurses to interpret key information -- but machines are already coming to their aid, scanning images for signs of cancer, analysing data for symptoms of kidney failure, and more. In the future, apps will allow you to ask Alexa for medical advice, tools will assist GPs with triage and hunt for signs of cancer in medical scans, and chatbots could help treat mental illness. Google-owned DeepMind is working on projects to analyse patient data to predict kidney failure, spot head and neck cancers, and to read complicated eye images.