Andrew Lownie is the author of Entitled: The Rise and Fall of the House of York, published earlier this year.

Caffeine can boost alertness, mood, and performance, but how much can we tolerate?

Quiz master Jack Waley-Cohen is back with his Sunday Morning quiz.

We cross to the States for the latest US news from political journalist Karen Kasler.

A retired volunteer firefighter himself, George jumped on his bike to visit fire stations across the country and discovered the history, traditions, and humanity of each brigade.

Dr Ali Hill, from Otago University's Department of Human Nutrition, returns to Sunday Morning to discuss safe protein powder, tinned oysters and supermarket yoghurt.

Bonnie Harrison is here guiding us through the latest weird and useful headlines from the world of science.

When he was 12 years old, Martin Pistorius was stricken by a mysterious neurological illness, known as Locked-in Syndrome.

Financial journalist Frances Cook joins Jim to explore the nitty gritty of giving yourself permission to spend.

RNZ's Jamie Wall joins Jim from Chicago's Soldier Field stadium just before kick-off in the All Blacks' clash with Ireland. It's the first game in the All Blacks Northern Tour against the four home nations.