LEGO responded to criticisms of gender bias by releasing an all female Research Institute set. David Pickett [CC BY 2.0], via Flickr.This latest episode of the Naturally Speaking podcast explores the increasingly prominent issue of gender inequality in science and engineering. With the help of four Institute researchers: Prof. Dan Haydon, Dr Michelle Bellingham, Dr Winnie Boner and Dr Richard Orton, we first explore the evidence for women being underrepresented in scientific research and why this bias exists. Then, we discuss the Athena Swan Charter and the action we can take to reverse this bias and promote more diverse working environments.