Narcolepsy is a sleep disorder that is best known, thanks to Hollywood, for causing people to fall asleep suddenly during the day. Most people with the condition are diagnosed during childhood or adolescence when their symptoms first manifest. Others live with the symptoms for years before receiving an accurate diagnosis.
One of the most common signs of narcolepsy is daytime sleepiness. Many people feel refreshed upon awakening but experience increasing fatigue as the day goes on. For some individuals, this symptom is so severe that they fall asleep in the middle of carrying out work. Other people feel drowsy and low-energy throughout the day despite sleeping through the night. Experts believe people with narcolepsy do not get enough quality sleep at night.
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