1. Definition :-Narcolepsy is a chronic neurological disorder that affects the brain's ability to regulate sleep-wake cycles.
2. Symptoms :- Main symptoms include excessive daytime sleepiness (EDS), cataplexy (sudden muscle weakness), sleep paralysis, and hallucinations.
3. Types :-There are two main types: Type 1 (with cataplexy) and Type 2 (without cataplexy).
4. Causes:- Causes include genetic predisposition, brain chemistry imbalances (e.g., hypocretin), and potential triggers like infections or head trauma.