Dr David Halpern, an experimental psychologist, was part of the original nudge unit put together by the British government to address policy challenges where human behaviour was a key component.

Mandy Len Catron has written a thought-provoking piece in The Atlantic asking whether marriage actually creates a social handicap. She joins the show to discuss.

Broadcasters boosting climate change scepticism; crunching the number on public service PR and comms.

Research shows that men are not 'dirt-blind', as popular lore might have suggested. Professor Leah Ruppanner co-authored the study and joins the show to help debunk the male dirt-blind myth.

Three Minutes Max: succinct opinions from a variety of New Zealanders on all sort of topics. Here's Dr Betty Ofe-Grant, a lecturer in management at AUT, on the subject of weight bias in the clothing industry.

Expat New Zealand Ashley Eves is Calling Home from Belfast this week. He discusses life in the picturesque Northern Irish city and why he'll never shun his Kiwi roots.

Simon Bridges asks the same question of the PM every day. Sometimes twice. It’s not even a very specific one. So why does he do it?

Mountain surveyor Myrrdyn Phillips was involved in the measuring of the world's steepest street in Wales. He joins the show to explain why Ffordd Pen Llech deserves the title.

The manhunt for two Canadian teens suspected of killing three people in cold blood continues after the accused took authorities 2,000 miles across Canada's rural north. Globe & Mail reporter Mike Hagen joins the show with all the latest.

New Zealand's mental health system is on the brink of a major overhaul, Health Correspondent Karen Brown examines the pressure points and asks what's needed to help those living with mental illness.