All animals, including humans, need to sleep. Scientists have several theories that help explain why we sleep. In this episode of But Why, a child sleep psychologist describes the evolutionary theory of sleep and explains how sleep benefits the brain and body. Listen to learn more about the science of sleep and its importance for healthy growth and development.
Story Length: 6:12
Socrative users can import these questions using the following code: SOC-1234
Fact, Question, Response
Language Identification Organizer
Deeper Meaning Chart