蜜芽传媒

Professor John Powell is interested in how far the digital world can help improve health and access to health care - from interventions for heart attacks to the treatment of depression. There are more than two hundred thousand health apps on the internet, but just how effective are they? He talks to Andrew Marr about our obsession with checking the internet for self-diagnosing.

First broadcast on Start the Week, 19 June 2017.