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Published on: 11/13/2025

What are the early warning signs of narcolepsy?

Narcolepsy often starts with sudden sleep attacks, extreme daytime sleepiness, and sometimes episodes of muscle weakness called cataplexy.

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Explanation

Narcolepsy is a sleep disorder that can cause sudden sleepiness and sleep attacks. People with narcolepsy may feel very sleepy during the day and might suddenly fall asleep at any time. One key sign is cataplexy, which is when someone experiences sudden muscle weakness, often triggered by strong emotions like laughter or surprise.

Early Warning Signs:

  1. Excessive Daytime Sleepiness: Feeling very sleepy during the day, even after a good night's sleep.
  2. Sudden Sleep Attacks: Falling asleep suddenly and without warning.
  3. Cataplexy: Sudden loss of muscle strength, which can lead to slurred speech or weakness in the arms and legs.
  4. Sleep Paralysis: Being unable to move or speak when falling asleep or waking up.
  5. Hallucinations: Seeing or hearing things that aren't there when falling asleep or waking up.

If you or someone you know is experiencing these symptoms, it might be helpful to talk to a healthcare provider for more information. For any mental health concerns, you can visit 988lifeline.org.

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