What Causes Narcolepsy?
It is believed that:
- Narcolepsy type 1 (with cataplexy) occurs due to a loss of certain nerve cells that help balance sleep and wake states
- The cause of narcolepsy type 2 (without cataplexy) is not known
- This interferes with the sleep/wake cycle and can cause certain characteristics of sleep to occur while you are awake
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