Dr William Frankland, Allergist and WW2 Prisoner of War

Dr William Frankland is a world renowned expert on allergies and one of the last remaining British survivors of the Japanese prisoner of war camps in World War Two. His is a death-defying, life-affirming story. But at the age of 106, what keeps him going? (Photo: William Frankland. Credit: John Stillwell/AFP/Getty Images)