A woman wraps a pillow around her ears to block her husband's snoring
There are nine different kinds of sleep disorders. Some are mostly annoying, causing daytime fatigue and long nights, while others put us at risk for serious illnesses and injuries.

Narcolepsy

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5. Narcolepsy

Many people who suffer from narcolepsy have chronic sleepiness during the day time and may fall asleep suddenly. This is particularly hazardous while operating equipment, driving, or conducting other potentially harmful activities.

Medications are often prescribed to treat narcolepsy. The condition is caused by a disorder within the brain, and sometimes even runs in families.

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