RADIO CHOICE

WHAT is a QR code? Which five words are engraved on the letterbox of 10 Downing Street? What is extracted during the Frasch process? A new series of the annual BRAIN OF BRITAIN (RADIO 4, 3PM) — which began in 1953 — gets under way as 48 contestants answer some mighty tricky questions in a quest to be the Brain Of Britain 2018.

IT SEEMS logical that runners need plenty of carbohydrates in their diet to give them energy. Now, though, many runners are turning to a low-carb diet as they feel this trains the body to burn fat for fuel. Some runners are so taken with this concept that they even go for a no-carb diet. Dan Saladino presents THE FOOD PROGRAMME (RADIO 4, 3.30PM), and hears from athletes taking this dietary route to peak performance.

country artist, but her hit album 1989 Storms saw her taking a new direction. For this week’s edition of JOHNNIE WALKER’S LONG-PLAYERS (RADIO 2, 10PM),

Johnnie and David Hepworth compare and contrast Storms with K.D. Lang’s 1992 offering Ingenue, an album that had Lang shaking off that country sound. As ever, Hepworth more than earns his BBC fee with a slew of anecdotes.