alleryStart learning →Fatigue, sluggishness and irritability are listed alongside insomnia as symptoms following:
AA single vivid dream
BAny meditation session
CNormal REM sleep phases
DDisrupted sleep-wake cycles
Answer & Solution
Correct answer: D. Disrupted sleep-wake cycles
1. Shifting the body clock has measurable costs.
2. Crossing time zones means we often experience jet lag.
3. These symptoms include fatigue, sluggishness, irritability, and insomnia.
4. Insomnia here is defined as difficulty sleeping over a month's time.
5. Normal REM sleep and meditation are not described as producing these symptoms.
_Source: OpenStax Psychology 2e (CC BY 4.0), Ch 4 'States of Consciousness', sections 4.1-4.6_
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