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Narcolepsy

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Narcolepsy is a type of sleep disorder that causes periods of extreme daytime sleepiness. It also may cause muscle weakness.

Rarely, people who have this disorder fall asleep suddenly, even if they're in the middle of talking, eating, or another activity. Most people who have narcolepsy also have trouble sleeping at night.

This sleep disorder and its symptoms may cause:

  • Cataplexy. This condition causes a sudden loss of muscle tone while you're awake. Muscle weakness can occur in certain parts of your body or in your whole body. For example, if cataplexy affects your hand, you may drop what you're holding. Strong emotions often trigger this weakness. It may last seconds or minutes.
  • Hallucinations. These vivid dreams occur while falling asleep or waking up.
  • Sleep paralysis. This condition prevents you from moving or speaking while waking up and sometimes while falling asleep. Sleep paralysis usually goes away within a few minutes.

The two main phases of sleep are nonrapid eye movement (NREM) and rapid eye movement (REM). Most people are in the NREM phase when they first fall asleep. After about 90 minutes of sleep, most people go from NREM to REM sleep.

Dreaming occurs during the REM phase of sleep. During REM, your muscles normally become limp. This prevents you from acting out your dreams. People who have narcolepsy often fall into REM sleep quickly and wake up directly from it. This is linked to vivid dreams while waking up and falling asleep.

Narcolepsy affects between 50,000 and 2.4 million people in the United States. Symptoms usually begin during the teen or young adult years. Due to extreme tiredness, people who have narcolepsy may find it hard to function at school, work, home, and in social situations. Narcolepsy has no cure, but medicines, lifestyle changes, and other therapies can improve symptoms. Research on the causes of narcolepsy and new ways to treat it is ongoing.

It is important to learn about sleep disorders and symptoms if you suspect you or a family member have problems sleeping. Read more about narcolepsy here.

Find out if you might have a sleep disorder. TAKE THE SLEEP QUIZ TODAY!

 

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DeKalb Medical Sleep Center

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Decatur, GA 30033

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Lithonia, GA 30058

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