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  2. Rapid eye movement sleep behavior disorder - Wikipedia

    en.wikipedia.org/wiki/Rapid_eye_movement_sleep...

    It can be caused by adverse reactions to certain drugs or during drug withdrawal; however, it is most often associated with the elderly and in those with neurodegenerative disorders such as Parkinson's disease and other neurodegenerative diseases, for example multiple system atrophy and the Lewy body dementias.

  3. Narcolepsy - Wikipedia

    en.wikipedia.org/wiki/Narcolepsy

    Narcolepsy is often mistaken for depression, epilepsy, the side effects of medications, poor sleeping habits or recreational drug use, making misdiagnosis likely. [citation needed] While narcolepsy symptoms are often confused with depression, there is a link between the two disorders. Research studies have mixed results on co-occurrence of ...

  4. Autosomal dominant cerebellar ataxia, deafness, and narcolepsy

    en.wikipedia.org/wiki/Autosomal_dominant...

    Autosomal dominant cerebellar ataxia, deafness, and narcolepsy (ADCADN) is a rare progressive genetic disorder that primarily affects the nervous system and is characterized by sensorineural hearing loss, narcolepsy with cataplexy, and dementia later in life.

  5. List of medical mnemonics - Wikipedia

    en.wikipedia.org/wiki/List_of_medical_mnemonics

    This is a list of mnemonics used in medicine and medical science, categorized and alphabetized. A mnemonic is any technique that assists the human memory with information retention or retrieval by making abstract or impersonal information more accessible and meaningful, and therefore easier to remember; many of them are acronyms or initialisms which reduce a lengthy set of terms to a single ...

  6. Sleep disorder - Wikipedia

    en.wikipedia.org/wiki/Sleep_disorder

    One factor that could explain this change in sleep architecture is a disruption in the circadian rhythm, which regulates sleep. [19] This disruption can lead to sleep disturbances. [19] Some studies show that people with Alzheimer's disease have a delayed circadian rhythm, whereas in normal aging, an advanced circadian rhythm is present. [19] [20]

  7. Cataplexy - Wikipedia

    en.wikipedia.org/wiki/Cataplexy

    The hypothalamus region of the brain regulates basic functions of hormone release, emotional expression and sleep. One study concluded that the neurochemical hypocretin, also known as orexin, which is regulated by the hypothalamus, was significantly reduced in study participants with symptoms of cataplexy. Hypocretin regulates sleep and states ...

  8. Dextroamphetamine - Wikipedia

    en.wikipedia.org/wiki/Dextroamphetamine

    Patients with narcolepsy are diagnosed as either type 1 or type 2, with only the former presenting cataplexy symptoms. [58] Type 1 narcolepsy results from the loss of approximately 70,000 orexin -releasing neurons in the lateral hypothalamus , leading to significantly reduced cerebrospinal orexin levels; [ 59 ] [ 60 ] this reduction is a ...

  9. Nightmare disorder - Wikipedia

    en.wikipedia.org/wiki/Nightmare_disorder

    The death of a loved one or a stressful life event can be enough to cause a nightmare, but conditions such as post-traumatic stress disorder and other psychiatric disorders have been known to cause nightmares as well. [14] If the individual is on medication, the nightmares may be attributed to some side effects of the drug.