By Robert Frederick, KWMU science reporter
http://stream.publicbroadcasting.net/production/mp3/kwmu/local-kwmu-530960.mp3
St. Louis, MO – Why do we sleep?
New research published in Science magazine this week suggests that it's to consolidate memory.
KWMU science reporter Robert Frederick spoke with one of the authors of the paper, Washington University neurobiologist Paul Shaw, about how his research on fruit flies applies to people.