Narcolepsy is a sleep disorder that has distinct symptoms. They include:
- Sudden sleep attacks. They may occur during any type of activity at any time of day. You may fall asleep while doing things like eating dinner, driving the car, or carrying on a conversation. These sleep attacks can occur several times a day. They may last from a few minutes to several hours.
- Sudden, brief periods of muscle weakness while you are awake (cataplexy). This weakness may affect specific muscle groups or may affect the entire body. It's often brought on by strong emotional reactions, such as laughing or crying.
- Hallucinations just before a sleep attack.
- Brief loss of the ability to move when you are falling asleep or just waking up (sleep paralysis).
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