In short, it can be understood as the opposite of Insomnia. Narcolepsy is a condition where an individual experiences excessive sleepiness, sleep paralysis, or hallucinations. It can even lead to a complete loss of muscle control sometimes. A study claims that the probability of occurrence of this disease in men is the same as in women. Moreover, there is no fixed age for its symptoms to come forefront, but in most cases, they become evident in childhood and adolescence. Scientists divided Narcolepsy into two classes; although its symptoms vary from person to person, these two can be understood as the super-set of all other types. They are: Narcolepsy with Cataplexy Narcolepsy without Cataplexy Studies say that the first type of Cataplexy, i.e., Narcolepsy with Cataplexy, is caused by a reduction in Hypocretin in the brain. The causes of another type are still unknown, but injuries to the brain stem, hypothalamus, tumors, stroke are suspected to be one of the reasons for the same.
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