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Related Concept Videos

Insomnia01:27

Insomnia

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Insomnia is a prevalent sleep disorder characterized by difficulty falling asleep, frequent awakenings during the night, and waking up too early without being able to return to sleep. People with insomnia often experience these disruptions at least three nights a week for at least one month. Chronic insomnia, which lasts for at least three months, can lead to increased anxiety, which in turn can worsen sleep difficulties, creating a cycle of sleeplessness and stress.
Multiple factors contribute...
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Management of Insomnia01:19

Management of Insomnia

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The sleep cycle, an integral part of human health, consists of several stages with distinct characteristics and functions. It begins with a transition from wakefulness to sleep, known as the light sleep phase, followed by the restorative deep sleep phase, essential for physical recovery and growth. The cycle concludes with the Rapid Eye Movement (REM) phase, characterized by high brain activity and vivid dreaming. Insomnia, a prevalent sleep disorder, involves difficulty falling asleep, staying...
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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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Insufficient Sleep and Sleep Deprivation01:13

Insufficient Sleep and Sleep Deprivation

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Insufficient sleep refers to not getting the recommended amount of sleep for optimal functioning, even if it's just slightly less than needed. Sleep insufficiency may occur due to lifestyle choices, such as staying up late for social events or work, resulting in routinely getting less sleep than required. For example, consistently sleeping 6 hours when the body needs 7-9 hours can lead to cumulative effects on health and well-being.
Sleep deprivation is a more severe form of sleep loss...
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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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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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Author Spotlight: Overcoming Challenges in Drosophila Sleep Measurement Using DAM System
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Insomnia disorder.

Kai Spiegelhalder1, Chiara Baglioni1,2, Charles M Morin3,4

  • 1Department of Psychiatry and Psychotherapy, University Medical Center Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany.

Nature Reviews. Disease Primers
|April 9, 2026
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Summary
This summary is machine-generated.

Insomnia disorder (ID) significantly impacts adults, causing sleep disturbances and daytime impairments. While cognitive behavioral therapy for insomnia (CBT-I) is recommended, new treatments are needed due to limited efficacy of current options.

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Area of Science:

  • Sleep Medicine
  • Neuroscience
  • Psychiatry

Background:

  • Insomnia disorder (ID) presents with nighttime sleep difficulties and daytime impairments like fatigue and cognitive deficits.
  • ID affects 10-16% of adults, imposing a significant burden and acting as a risk factor for other health conditions.
  • Current diagnosis relies on self-report, lacking a definitive biomarker, highlighting the need for improved diagnostic and therapeutic strategies.

Purpose of the Study:

  • To review the current understanding of insomnia disorder (ID) pathophysiology and treatment.
  • To emphasize the need for improved accessibility and implementation of cognitive behavioral therapy for insomnia (CBT-I).
  • To underscore the necessity for developing novel interventions for ID.

Main Methods:

  • Literature review of etiological and pathophysiological research in ID.
  • Analysis of current clinical guidelines and treatment recommendations for ID.
  • Evaluation of the efficacy and limitations of existing pharmacological and behavioral treatments for ID.

Main Results:

  • ID is characterized by complex symptoms and significant public health impact.
  • Cognitive behavioral therapy for insomnia (CBT-I) is the recommended first-line treatment, with digital CBT-I offering scalability.
  • Pharmacological treatments for ID are often limited to short-term use due to efficacy and safety concerns.

Conclusions:

  • Further research and development of novel interventions are crucial for effective ID management.
  • Widespread implementation of CBT-I, including digital formats, is essential to improve treatment accessibility.
  • Addressing the unmet needs in ID treatment requires a multi-faceted approach, combining refined existing therapies and innovative solutions.