Staff at Alder Hey children's hospital in Liverpool are teaming up with IBM Watson to develop an app to help patients and doctors work better together. The app will answer any questions which parents and children may have about their hospital stay. It will also allow children to create a profile so that clinicians know things such as their favourite colour. Later, it may be used to offer insights into treatments. Watson is an AI platform that is already advising doctors on treatments in a dozen cancer hospitals in the US, trawling through data - it can read 40 million documents in 15 seconds - to offer insights into possible treatments.