In this lively interview series from the RSA, Matthew Taylor, puts a range of practitioners on the spot - from scholars to business leaders, politicians to journalists - by asking for big ideas to help build effective bridges to our new future.

Matthew is joined by the author of 'Sweat: a History of Exercise', Bill Hayes. Together Matthew and Bill take a jog through history to find out more about our ancestors' attitude to keeping fit, and what we can learn from them next time we lace up a pair of trainers and hit the gym. 

Bill Hayes is an American non-fiction writer and photographer. He's the author of several books including his latest, 'Sweat: A History of Exercise'. 

A Tempo & Talker production for the RSA.  

In this time of global change, strong communities and initiatives that bring people together are more invaluable than ever before. The RSA Fellowship is a global network of problem solvers. We invite you to join our community today to stay connected, inspired and motivated in the months ahead. 

You can learn more about the Fellowship or start an application by clicking here.