What Are the Symptoms of Narcolepsy?
Narcolepsy is a neurological disorder of the dream and wake switch. You may enter dream sleep while awake or waken during dreams. Symptoms of narcolepsy include:
- Daytime sleepiness
- Sudden, involuntary episodes of falling asleep during normal daytime activities
- Vivid dreams that are difficult to tell from reality
- Dreaming during naps
- Dreaming before fully asleep
- Never waking up rested
- Sleep paralysis or partial wakening, yet unable to move
- Cataplexy (weakness of your face arm or legs with strong emotion)
- Frequent sinus and upper respiratory infections
What Causes Narcolepsy?
Individuals suffering from narcolepsy fall almost immediately into deep REM sleep; this may also occur during waking hours, disrupting normal activities and leading to uncontrollable bouts of daytime sleepiness.
The exact cause of this sleeping disorder is unknown, but researchers theorize it is the result of genes that are responsible for the production of chemicals that alert the brain to sleep and wake cycles. Some scientists believe excess production of hypocretin in the brain may lead to the onset of narcolepsy.
Narcolepsy is diagnosed in the sleep lab. You stay overnight for a regular sleep study, and then stay the next day for a Multiple Sleep Latency Test (MSLT). During this test, you take a series of four or five naps approximately two hours apart. If you fall asleep quickly and enter dream sleep during two of the naps, then the diagnosis of narcolepsy is made.
How Is Narcolepsy Treated?
There is no cure for narcolepsy, but medications such as stimulants can help combat excessive daytime sleepiness, while nighttime medications and antidepressants can help with abnormal REM sleep.
Lifestyle changes – limiting caffeine, alcohol and nicotine consumption, avoiding heavy meals, maintaining a consistent sleep schedule, taking brief daytime naps – can all help reduce the severity of symptoms and lead to an improved quality of life for many people.
Call Arthur J. Rosner, MD Ear, Nose & Throat Specialist at (248) 266-2312 for more information or to schedule an appointment.