Sir Michael Marmot delivers the opening lecture of the BBC Radio 3 Free Thinking Festival 2013, exploring the traits that determine a healthy life span and arguing that we need to rethink the relationship between health, wealth and self-control. Professor Marmot is one of the global pioneers of research into health inequalities - how stress, status and diet can affect our wellbeing. His ground-breaking Whitehall Studies followed the health and stress levels of British civil servants over a decade and he coined the term "status syndrome" to describe his discovery that being lower down the pecking order leads to a shorter life span. Recorded on Friday 25 October 2013 in front of a live audience at Sage Gateshead.