Body Clocks, Circadian Rhythms and Time

Kat Arney

Chris Smith

Time is very much the essence of this week's show, as Professor Russell Foster from Imperial College London discusses the human body clock, where it is and how it gives our bodies a daily rhythm, Professor Karl-Arne Stokkan from Tromso University in Norway describes how reindeer body clocks adapt to twenty four hours of sunlight, Dr Alex Webb from Cambridge University talks about plant circadian rhythms and how they differ from animals, and Anna Lacey interviews Professor Cynthia Kenyon from the University of California, San Francisco about how to survive longer and cheat time.