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Related Concept Videos

Insomnia01:27

Insomnia

571
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...
571
Management of Insomnia01:19

Management of Insomnia

764
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:
3.2K
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...
1.2K
Narcolepsy01:07

Narcolepsy

723
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.
723
REM Sleep Behavior Disorder01:15

REM Sleep Behavior Disorder

2.4K
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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Insomnia disorder.

Charles M Morin1, Christopher L Drake2, Allison G Harvey3

  • 1Université Laval, École de psychologie, 2325 rue des Bibliothèques, Québec City, Québec G1V 0A6, Canada.

Nature Reviews. Disease Primers
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Summary
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Insomnia disorder, a common complaint, involves sleep difficulties and daytime impairment. Recent advances offer targeted therapies, but understanding underlying mechanisms and improving accessibility remain key challenges.

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Area of Science:

  • Sleep Medicine
  • Psychiatry
  • Neurology

Background:

  • Insomnia disorder is highly prevalent, impacting daily functioning and quality of life.
  • It often co-occurs with other medical and psychiatric conditions, worsening health outcomes.
  • The underlying causes and mechanisms of insomnia are not fully understood.

Purpose of the Study:

  • To review the current understanding of insomnia disorder.
  • To highlight recent advances in its classification and treatment.
  • To identify remaining challenges in insomnia research and therapy.

Main Methods:

  • Literature review of recent studies on insomnia classification, pathophysiology, and treatment.
  • Analysis of changes in diagnostic paradigms and therapeutic approaches.
  • Synthesis of evidence on the efficacy of psychological and pharmacological interventions.

Main Results:

  • Insomnia is increasingly recognized as a distinct disorder, moving beyond symptom-based definitions.
  • Sleep-specific therapies show effectiveness in reducing sleep onset latency and wake after sleep onset.
  • Improvements in sleep parameters correlate with enhanced daytime functioning.

Conclusions:

  • Despite therapeutic progress, a deeper understanding of insomnia's mechanisms is needed.
  • Developing more cost-effective, efficient, and accessible treatments is crucial.
  • Continued research is essential to address the significant burden of insomnia disorder.