Narcolepsy

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Narcolepsy commonly causes you to have an irresistible tendency to fall asleep at any time of day, often at inappropriate times such as eating or in the middle of a conversation. Attacks may last from a few seconds to over an hour and may occur several times a day. There is also a feeling of sleepiness present most of the day.

You will often also experience cataplexy (sudden loss of muscular control) triggered by emotion, especially amusement, anger, and elation. You will usually be aware throughout the attack. The attack usually lasts for less than a minute and can occur up to several times a day.

It affects between 3-5 per 10 000 in European populations. The condition most commonly starts in the teens or 20s, but it can start in childhood or in middle age, with men and women equally affected. The symptoms of narcolepsy generally persist for life.

The symptoms of narcolepsy may have a major impact on relationships, education and employment.