Doctors are highly educated and (usually) very good at certain things – examining and talking to patients, and using the data they extract to diagnose and treat illness. What they are not necessarily so good at, is what they do with that data afterwards. But increasingly, innovations in health care involving big data are producing solutions which are helping physicians to diagnose more accurately and treat more effectively. If you’re older than about 35, you might remember the first time you saw a computer in a doctor’s surgery. Now they are commonplace, and it is not unusual to see your physician accessing information to help with diagnosing and prescribing medicine, during a consultation.