Psychologist Kimberley Wilson and Dr Xand van Tulleken take a journey around the human body, asking what it can tell us about our innate capacity for change. In this episode, they peep inside the brain's temporal lobes in search of the hippocampus: the seahorse-shaped seat of memory.

The pair meet a memory athlete who reveals his techniques, explore how new insights from neuroscience can help us make better memories, and Kimberley gives Xand a memory test he’ll (hopefully) never forget...

Producer: Dan Hardoon