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Related Concept Videos

Sleep-Wake Cycles01:24

Sleep-Wake Cycles

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Sleep is an essential physiological process vital to maintaining overall well-being. The reticular activating system (RAS), a network of neurons in the brainstem, regulates wakefulness and sleep. While it may seem passive, sleep consists of distinct cycles, each with its unique characteristics and functions. Two key sleep phases are non-rapid eye movement (NREM) and  rapid eye movement (REM).
NREM Sleep
NREM sleep comprises four progressive stages that seamlessly merge:
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REM Sleep Behavior Disorder01:15

REM Sleep Behavior Disorder

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REM Sleep Behavior Disorder (RBD) is a sleep disorder characterized by the absence of muscle paralysis that normally occurs during the REM phase of sleep. This absence allows individuals to physically act out their dreams, which are often vivid and disturbing. Common behaviors exhibited during episodes include kicking, punching, and yelling. These actions can be dangerous, potentially leading to injuries for the person with RBD or their bed partner.
RBD is significantly associated with...
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Narcolepsy01:07

Narcolepsy

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Narcolepsy is a chronic sleep disorder characterized by pervasive, uncontrolled sleepiness and other sleep disturbances. One of its hallmark symptoms is an abrupt transition to REM sleep upon falling asleep, which causes symptoms typically associated with this phase to occur unexpectedly during wakefulness. These include the following symptoms, which typically last from a minute or two to half an hour.
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Seizures: Classification01:13

Seizures: Classification

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Epilepsy is primarily characterized by unpredictable seizures, either provoked by an identifiable factor, such as injury or illness, or unprovoked, occurring spontaneously without apparent cause.
Seizures are typically classified into two main categories: focal and generalized seizures.
Focal Seizures
Focal seizures originate from specific regions of the brain. These seizures are further sub-classified into two types:
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Stages of Sleep01:22

Stages of Sleep

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Sleep progresses through distinct stages, each characterized by specific brain wave patterns and physiological responses ranging from wakefulness to stages of non-rapid eye movement, known as non-REM, to rapid eye movement, referred to as REM. Understanding these stages helps in recognizing how sleep supports various bodily and cognitive functions.
Before sleep begins, in wakefulness, the brain exhibits primarily beta waves, which are high in frequency and low in amplitude, indicating alertness...
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Epilepsy and Seizures: Overview01:24

Epilepsy and Seizures: Overview

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Epilepsy is a chronic neurological disease marked by recurrent, unpredictable seizures. These seizures are caused by abnormal electrical discharges in the brain, leading to behavior, sensation, or consciousness alterations. They can also cause transient impairment of awareness, interfering with daily activities.
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[Smells, emotions, and sleep: distinctive features of the olfactory system compared to other sensory modalities].

Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova·2026
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[Obstructive sleep apnea and epilepsy comorbidity: possible complications and treatment options].

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Related Experiment Video

Updated: Dec 5, 2025

Manipulation of Epileptiform Electrocorticograms ECoGs and Sleep in Rats and Mice by Acupuncture
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Manipulation of Epileptiform Electrocorticograms ECoGs and Sleep in Rats and Mice by Acupuncture

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[Sleep and wake disorders in epilepsy].

A B Kozhokaru1,2, A S Samoylov1, V I Shmyrev2

  • 1State Research Center - Burnasyan Federal Medical Biophysical Center of Federal Medical Biological Agency, Moscow, Russia.

Zhurnal Nevrologii I Psikhiatrii Imeni S.S. Korsakova
|October 20, 2020
PubMed
Summary

This review summarizes sleep disorders in epilepsy, including excessive daytime sleepiness and sleep apnea. Further research is needed to improve diagnosis and treatment for better quality of life.

Keywords:
daytime sleepinessepilepsyobstructive sleep apnea syndromeparasomniasrestless leg syndromesleep

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Area of Science:

  • Neurology
  • Sleep Medicine
  • Epileptology

Background:

  • Sleep disorders are common in epilepsy patients.
  • Understanding these disorders is crucial for patient care.

Purpose of the Study:

  • To review the prevalence, characteristics, and diagnostic criteria of sleep disorders in epilepsy.
  • To synthesize current knowledge on the topic.

Main Methods:

  • A comprehensive literature search was conducted.
  • Databases searched include Medline (Pubmed), Scopus, Web of Science, and e-library.

Main Results:

  • Analysis of epidemiologic, clinical, and diagnostic aspects of various sleep disorders.
  • Included excessive daytime sleepiness, obstructive sleep apnea, central apnea, restless leg syndrome, and parasomnias.

Conclusions:

  • Complex associations between sleep disorders and epilepsy require further investigation.
  • Optimizing diagnostic and treatment strategies is essential.
  • Improving the quality of life for patients with epilepsy and sleep disorders is a key goal.