Assertion: narcolepsy's cataplexy | /r/HasProperty | major symptom of narcolepsy
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Source sentences:
text: Cataplexy is a major symptom of narcolepsy, a chronic neurological condition that involves other symptoms such as excessive daytime sleepiness – that can result in difficulty focusing and maintaining alertness, along with sleep paralysis and vivid hallucinations when falling asleep or waking
text: Excessive daytime sleepiness (EDS) and cataplexy are considered the main symptoms of narcolepsy.