Russell Foster, Debra Skene and Stafford Lightman discuss the science of sleep. Why do we need sleep and what are the physiological processes driving our circadian rhythm? When is our circadian clock disrupted and how does this affect our health? Cognitive neuroscientist Vincent Walsh chairs the debate.Ri Science Podcast episodes are released on the last Wednesday of every month, and our new ‘From the Theatre’ episodes are released on the second Wednesday of the month. Subscribe to be notified as soon as the next episode is released!