To Sleep, Perchance to Dream: Crash Course Psychology #9

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Why do we sleep? Well... that's a tricky question. More easily answered is the question,"How do we sleep?" In this episode of Crash Course Psychology, Hank discusses some of the ways our brain functions when sleeping and how it can malfunction as well.

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Table of Contents

Four Stages of Sleep 02:38
Why We Dream 04:28
Information Processing 08:13
Physiological Function 08:31
Cognitive Development 08:52
Neural Activity Models 09:04

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