narcolepsy
Pronunciation: NAR-ko-lep-see
A chronic neurological disorder characterized by excessive daytime sleepiness and sudden, uncontrollable episodes of falling asleep.
Full Definition
A complex sleep-wake disorder affecting the brain's ability to regulate sleep-wake cycles normally. Patients with narcolepsy experience overwhelming daytime drowsiness and sudden sleep attacks that can occur at inappropriate times. The condition often includes additional symptoms such as cataplexy (sudden muscle weakness), sleep paralysis, and hypnagogic hallucinations. Type 1 narcolepsy includes cataplexy, while Type 2 does not. The disorder typically begins in adolescence or young adulthood and significantly impacts daily functioning and quality of life.
Usage
Usage note: Not to be confused with general excessive sleepiness or hypersomnia.
In Context
- "The diagnosis of narcolepsy was confirmed through multiple sleep latency testing." — Diagnostic report
- "Patients with narcolepsy often struggle with maintaining employment due to unpredictable sleep episodes." — Clinical documentation