Kirsty Young's castaway is Dr. Kevin Fong. He is a consultant anaesthetist at University College Hospital London, and an expert on space medicine. He is a senior lecturer in Physiology at UCL and the co-director of the Centre for Aviation, Space and Extreme Environment Medicine. Born to parents who had come to the UK from Mauritius, he grew up in London. His parents put great emphasis on education - which they had both missed out on in their youth. Kevin's first degree was in astrophysics and he went on to study medicine. He has combined his love of space with medicine and has spent time working at the Johnson Space Centre in the US. He has been a consultant anaesthetist since 2010, but has kept pursuing his interests in extreme environments from space to altitude and depth. He has made many television documentaries about his field of interest and gave the 2015 Royal Institution Christmas Lectures.

Producer: Sarah Taylor.