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

Why do we sleep 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. Want more videos about psychology Check out our sister channel SciShow Psych at Chapters: Introduction: What Happens When We re Sleeping 00:00 What is sleep and why do we do it 1:20 How do we sleep 1:56 Rapid Eye Movement (REM) 2:38 4 Stages of Sleep 3:08 Sleep Deprivation 4:28 Sleep Disorders 4:47 What do we dream about 6:08 Why do we dream 7:26 Review Credits 9:46 Crash Course is on Patreon You can support us directly by signing up at Want to find Crash Course elsewhere on the internet Facebook Twitter