Phill Jupitus searches for the answers to questions posed by songs. A 1988 trance music hit for The KLF provokes a discussion about circadian rhythms with Professor Russell Foster.

Professor Russell Foster is Head of the Nuffield Laboratory of Ophthalmology and Director of the Sleep and Circadian Neuroscience Institute at Oxford University.

Producer: Rosie Boulton
A Must Try Softer production for BBC Radio 4 Show less