What Is Sleep?
Category: SCIENCE
We asked 11-year-olds to come up with their own questions to pose to scientists. This year, kids have asked scientists What is Sleep? It's probably a question we all have asked ourselves from time to time. We spend a third of our lives doing it, but we don't fully understand why.
By Alan Alda, ContributorActor, writer, director, 2014-12-24