Click on the links below to access the assigned reading.
4.1 What Is Consciousness?
4.2 Sleep and Why We Sleep
4.3 Stages of Sleep
4.4 Sleep Problems and Disorders
4.5 Substance Use and Abuse
4.6 Other States of Consciousness
States of Consciousness. Authored by: OpenStax CNX. Located at: http://cnx.org/content/col11629/latest. License: CC BY-4.0. License Terms: Download for free at http://firstname.lastname@example.org.