Next Episode: Strands of life: 2

Trailer: Every summer, a special scientific meeting takes place on Lindau Island in Germany. At the 2011 meeting, focused on physiology and medicine, we filmed 5 conversations between Nobel prizewinners and young researchers to find out how they're tackling some of the world's greatest health challenges including cancer, obesity and ageing. The 5 films will be released, one a week, from 15 September to 13 October 2011.