Series in which three famous people ask why they are the way they are. Athlete Colin Jackson lets scientists loose on his body and mind to discover the secrets of his amazing talents. He goes into a brain scanner, under a microscope and even jumps out of plane to answer a question that effects us all.

Are some of us born winners and others destined to be couch potatoes? Are people like Colin born with superhuman potential or could something as simple as the month we're born affect our chances of sporting success? Nature or nurture - what makes us who we are? Show less