Why do we sleep? Although science has yet to explain the reason we spend one-third of our lives in this bizarre state, an exciting theory suggests that sleep can solidify newly learned memories by rewiring the architecture of brain.
What does sleep have to do with emotion and memory, and why does the future of sleep mean a return to the past? Dr. Matt Walker explains what's going on behind the scenes when we close our eyes for the night, at Smithsonian Magazine's The Future Is Here Festival in Washington DC. About the Speaker: Dr. Matt Walker is a professor of psychology and neuroscience, and director of UC Berkeley's Sleep and Neuroimaging Laboratory.