OLYMPICS HEALTH PLANNING
Claudia Hammond talks to experts making plans to tackle any health issues that might arise from the huge numbers of people set to descend on London during this year's Olympic Games.
40TH ANNIVERSARY OF THE CT SCAN
The 40th anniversary of a medical invention that has transformed our ability to see inside the human body: The CT or CAT scan. She discovers why this great medical invention has an unlikely connection with the Beatles, and discovers more about the British scientist, Sir Godfrey Hounsfield, whose genius lay behind its development.