What happens in our brains while we're asleep? That's one question neuroscientist Penelope Lewis is trying to answer. She directs the Sleep and Memory Lab at the University of Manchester in England. Her new book is The Secret World of Sleep: The Surprising Science of the Mind at Rest.
Lewis joins Fresh Air's Terry Gross to talk about how sleep affects memory, and how REM sleep can affect depression.
Originally published on Thu August 15, 2013 3:32 pm
In the wake of the deadly crackdown by Egypt's security forces, many analysts are no longer talking about a country struggling with democracy. Rather, they see a revolution gone awry and a military that seems determined to crush the Muslim Brotherhood.
A movie last year called A Late Quartettold the traumatic story of what happens when a famous string quartet has to change personnel. But, in fact, most string quartets — like symphony orchestras, only more conspicuously — continually change players, because players retire, or die, or get more lucrative offers.