Sheila Dillon talks to Prof Sidney Mintz about the history of sugar.
Josie Long celebrates the pleasures of chess as she rekindles her own love for the game.
2/3. Hand crafted sitars, authentic Qawali and the singing boys of the Rajasthan desert.
Three scientists each present their idea for how to reduce sugar intake.
Sheila Dillon finds out why the debate about the role of sugar in our lives is hotting up.
Bee Wilson explores sugar's role as a cause of conflict.
Food writer Bee Wilson explores Britain's love affair with sugar.
A close encounter with the street chess players of Washington Square Park, New York.
Ernie Rea and guests discuss the spiritual roots of yoga.
Michael Rosen and Laura Wright discuss the role of young women in language innovation.
Melvyn Bragg examines the number between 1 and -1, once denounced as the devil's work.
Strangely, 'nothing' had to be invented, and then it took thousands of years to catch on.