We all know the importance of sleep, but what happens if we literally can’t? In this episode of Life Without, Alan Davies breaks down how long a world full of sleepy people could function.

From memory loss to hallucinations, sleep is keeping all our brains working and our bodies functioning. Without it, we would surely die, but what might happen before we do and has tech found solutions to life without sleep?

This episode features Derk-Jan Dijk a expert in sleep and Professor at the University of Surrey, and Dr Sophie Bostock an educator dedicated to the science of sleep and performance.

An ITN production for BBC Radio 4

How many of us even use a pen these days and what if we never picked one up ever again? In this episode of Life Without, Alan Davies looks at our ancient skill of handwriting. If we could no longer write, would it really matter?

From the feather with ink to our daily ballpoint, writing has been the most personal and poetic way to communicate throughout human history. But as less of us pick up a pencil, would life without writing work?

This episode features Nels Abbey a critically acclaimed writer and Dominic Wyse a Professor of Early Childhood and Primary Education at the UCL Institute of Education.

An ITN production for BBC Radio 4

Gen Z are famously having less of it. Do we even need it all? In this episode of Life Without, Alan Davies looks at what happens when we lose one of our most primal instincts?

Where do we currently stand in reproductive technology and how important is sex in understanding our biological function?

This episode features Miranda Kane a comedian, writer, and former sex worker who uses her platform to destigmatise the sex industry and Sarah Johns, a biological anthropologist at Kent and Medway Medical School with specialized expertise in human sexual behaviour.

An ITN production for BBC Radio 4