Psychologist Kimberley Wilson and Dr Xand van Tulleken take a journey around the human body, to find out what it can tell us about our innate capacity for change. In this episode, Kimberley and Xand pull their shoulders back and examine the spine. They debunk some myths about contortionists’ spines, ask whether standing tall can really improve your confidence, and explore how we can change our relationship with pain. Producer: Dan Hardoon Executive Producer: Kate Holland A Whistledown Production for BBC Radio 4