Fear is one of the six basic universal emotions (the others are anger, disgust, happiness, sadness and surprise) and like all human emotions not easy to understand. Fear can be played upon, enjoyed, conquered. It is an obstacle to progress ("the only thing to fear is fear itself") and, as we stand at the kerb, it saves our lives every day. This series of The Essay brings you five essays on different aspects of fear.

Author and animal scientist Temple Grandin tells the story of how, in 1949, she was diagnosed with autism at aged two. Autism was not always well understood at the time, but Grandin's mother refused to accept the notion that her daughter could never participate in mainstream society. Grandin has since become a leading advocate for autistic people, explaining the role fear and anxiety plays in their condition and how they those feelings can be managed. Her experience of fear has also given her a unique insight into animal welfare, and led her to campaign for improved animal rights and care of livestock.

Producer Laura Thomas.