Giles Coren tries three extreme diet regimes in a bid to increase his life expectancy.
A look at the life-saving work of an Air Ambulance crew.
Angela Samata explores why some people take their own lives.
Michael Mosley tells the story of the creation of our most useful and valuable drugs.
Tim Rogers investigates the effectiveness of sports supplements.
Zawe Ashton attempts to uncover the truth about FGM in the UK and abroad.