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cataplexy
noun
cat·a·plexy
ˈka-tə-ˌplek-sē
plural cataplexies
ˈka-tə-ˌplek-sēz
: sudden loss of muscle power following a strong emotional stimulus
Examples of cataplexy in a Sentence
Recent Examples on the Web
The drug is designed to increase wakefulness, reduce cataplexy and potentially be a novel treatment for narcolepsy type 1.
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Pia Singh, CNBC, 20 Sep. 2024
In addition to sleep disturbance, most people with Type 1 narcolepsy experience sudden, temporary loss of muscle control or paralysis, called cataplexy.
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Tribune News Service, Hartford Courant, 15 Jan. 2024
How is cataplexy treated?
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Sarah Fielding, Health.com, 6 Dec. 2021
People with cataplexy, a rare condition tied to narcolepsy, may suddenly lose all their muscle strength and collapse during a fit of laughter.
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Elizabeth Preston, Discover Magazine, 29 Aug. 2014
Not all narcoleptics experience cataplexy, but those who do may lose all strength in their muscles during moments of strong emotion.
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Elizabeth Preston, Discover Magazine, 30 Aug. 2011
But this view ignores narcolepsy's most ridiculous symptom, called cataplexy.
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Elizabeth Preston, Discover Magazine, 30 Aug. 2011
According to the Mayo Clinic, the frequency of cataplexy varies tremendously case by case.
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Sarah Fielding, Health.com, 3 Dec. 2021
Symptoms such as hallucinations, sleep paralysis, and cataplexy may follow, says Manjamalai Sivaraman, MD, FAASM, a sleep medicine specialist and neurologist at the University of Missouri.
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Sarah Fielding, Health.com, 8 Dec. 2021
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Word History
Dictionary Entries Near cataplexy
Cite this Entry
“Cataplexy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cataplexy. Accessed 12 Feb. 2025.
Medical Definition
cataplexy
noun
cat·a·plexy
ˈkat-ə-ˌplek-sē
plural cataplexies
-sēz
: a sudden loss of muscle control with retention of clear consciousness that follows a strong emotional stimulus (as elation, surprise, or anger) and is a characteristic symptom of narcolepsy
More from Merriam-Webster on cataplexy
Britannica.com: Encyclopedia article about cataplexy
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