Mysteries of Sleep - Sleepwalking

Why do some of us do bizarre things in our sleep?

• 30 mins

The Unconscious Life of Bombs

Daniel Pick traces how aerial bombardment has made the unconscious mind a field of battle.

• 29 mins

Iceland's Dark Lullabies

Storyteller Andri Snær Magnason is dreaming of a dark Christmas, in Iceland.

• 30 mins

The Power of Sloth

Lucy Cooke discovers the joy of sloth and sloths and the benefits of being really slow.

• 30 mins

Thinking Outside the Boxset: How Technology Changed the Story

Mark Lawson explores how technology is changing the way people write stories.

• 30 mins

The Far Future

How do we prepare for the distant future? Helen Keen meets the people who try to.

• 31 mins

Why the Moon, Luke?

Artist Luke Jerram is obsessed with the moon, so he has made one to take around the world.

• 29 mins

Good Luck Professor Spiegelhalter

Rhianna Dhillon brings you another seriously interesting story from Radio 4.

• 58 mins

The Dawn of British Jihad

The British Muslims who joined Jihad in Afghanistan, Bosnia and Kashmir in the 80s and 90s

• 39 mins

From the Steppes to the Stage

Mongolia's remarkable rise to being an opera superpower.

• 62 mins

Inside the Brain of Gerald Scarfe

What is going on inside Gerald Scarfe's brain?

• 30 mins

The Death of Illegitimacy

Has the stigma of illegitimacy died out? Caroline Flint MP finds out.

• 60 mins

Find Me a Cure

Can we cure the most common form of leukaemia? Simon Cox reports.

• 32 mins

Inside the Killing Jar

Is it okay to kill insects in the name of science? Adam Hart explores the issues.

• 31 mins

A Brief History of Cunning

American satirist Joe Queenan explores cunning.

• 59 mins

Behind the Scenes: Dawn Walton

A portrait of artistic director Dawn Walton as she leads a revolutionary theatre programme

• 31 mins

In the Wake of Wakefield

Adam Rutherford explores the 20-year legacy of a paper linking the MMR vaccine and autism.

• 60 mins

The Bald Truth

Ian Marchant investigates hair loss and why so many men (and some women) care so much.

• 59 mins

Mums and Sons

Lauren Laverne explores how artists treat the relationship between mums and sons.

• 31 mins

What Are the Odds?

Rajesh Mirchandani goes on an exploration of coincidence.

• 31 mins

The Art of Now - Band Politics

6 Music's Chris Hawkins investigates a new wave of politically engaged bands.

• 29 mins

The Vet with Two Brains

Claudia Hammond follows the 'vet with two brains' before, during and after brain surgery.

• 32 mins

The Turban Bus Dispute

Sathnam Sanghera on the battle for the turban in Enoch Powell's constituency.

• 30 mins

The Opt Out

What will an opt-out organ donation system really mean for the families asked to consent?

• 29 mins

Is Eating Plants Wrong?

Plants can do much more than we might think. So is it wrong to eat them?

• 30 mins

A Church in Crisis

William Crawley explores the decline of the Catholic church's authority in society.

• 30 mins

Commuterville

Matthew Sweet looks at how commuting has changed the world.

• 59 mins

Pursuit of Beauty: Slow Art

Illuminated snails dancing, sculpted volcanoes and music playing for 1,000 years.

• 30 mins

The Sisters of the Sacred Salamander

Why are Mexican nuns breeding a rare salamander? Could they save this remarkable species?

• 30 mins

Pink Rabbits and Other Animals

A profile of the beloved children's author Judith Kerr as she works on her latest book.

• 31 mins