Created by Carole Yue.

Watch the next lesson: https://www.khanacademy.org/test-prep/mcat/processing-the-environment/sleep-and-consciousness/v/sleep-wake-disorders-breathing-related-sleep-disorders?utm_source=YT&utm_medium=Desc&utm_campaign=mcat

Missed the previous lesson? https://www.khanacademy.org/test-prep/mcat/processing-the-environment/sleep-and-consciousness/v/dream-theories-freud-activation-synthnesis-hypothesis?utm_source=YT&utm_medium=Desc&utm_campaign=mcat

MCAT on Khan Academy: Go ahead and practice some passage-based questions!

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