Lesson 8

For Further Study

· (2020) Stages of Sleep: REM & Non-REM Sleep Cycles by Charlotte Ruhl; Simply Psychology
https://www.simplypsychology.org/sleep-stages.html

• (2020) A Walk Through the Stages of Sleep/Sleeping with Science, a TED series; YouTube
https://www.youtube.com/watch?v=eM2VWspRpfk

· (2019) The 4 Stages of Sleep (NREM & REM Sleep Cycles) by Kendra Cherry; Very Well Health
https://www.verywellhealth.com/the-four-stages-of-sleep-2795920

• (2015) What Would Happen If You Didn’t Sleep? – Claudia Aguirre by TED-Ed; YouTube
https://www.youtube.com/watch?v=dqONk48l5vY

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