Why Do We Need Sleep?
Russell Foster: Why Do We Need Sleep?
More From This Episode
Part 2 of the TED Radio Hour episode Maslow's Human Needs
About Russell Foster's TED Talk
What do we know about one of our most basic needs: sleep? Not a lot, says circadian neuroscientist Russell Foster. We know we need to do it to stay alive, but much about it remains a mystery.
About Russell Foster
Russell Foster is Professor of Circadian Neuroscience and the Head of the Department of Ophthalmology at the University of Oxford. Foster studies sleep and its role in our lives, examining how our perception of light influences our sleep-wake rhythms.