Google's DeepMind project has mostly focused on solving high-minded computer intelligence issues. Today, though, it's tackling something far more practical in the short-term: health care. The new DeepMind Health initiative relies on smart mobile apps to deliver medical data to doctors and nurses in time to save lives. The first app, Streams, helps spot acute kidney injuries that would otherwise go unnoticed. There are also plans to integrate technology from a third-party task management app, Hark, to identify patients that are at risk of deteriorating quickly.