Science journalist, TV presenter and bestselling author Dr Michael Mosley has been putting himself through a barrage of medical tests in the hope of discovering 'Are Health Tests Really a Good Idea?' the title of his latest documentary broadcast on the BBC.
Medical testing is a huge business, and is available to people feeling perfectly fit and well. From a high res heart scan to sending off your DNA for analysis, you can pay to find out how likely you are to develop and die from a particular health condition. But do you really want to know, and what can you do with this information?