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. To finish this series, they're in the brain getting acquainted with the amygdala. Is the amygdala really the home of fear? Kimberley...

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. This time, they examine the wrist, and its role as the hub where technology meets the body. Kimberley and Xand meet a man whose life...