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Crash Course Psychology - Season 1 Episode 9 에피소드 9
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.
- 국가 : United States of America
- 유형 :
- 감독 :
- 캐스트 : Hank Green
