KEY TAKEAWAYS •
Full consciousness is the awareness of one’s internal and external stimuli.
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Sleep is represented as an altered state of consciousness.
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There are many different stages of sleep, which make up REM sleep and nonREM sleep.
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Sleep disorders involve things like insomnia and several different parasomnias.
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Altered states of consciousness can be from substances, physiological states, or pathological conditions.
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Meditation is an altered state of consciousness used in religious and secular circumstances.
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Hypnosis can be used to create an altered state and can be used to treat different mental and physical disorders.
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