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Updated: Jun 17, 2026

Association Between Sleep Quality and Cognitive Symptoms in Patients with Major Depressive Disorder
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Published on: April 26, 2024

Sleep and suicidal behaviors.

Alix Romier1, Jeanne Leseur2, Anne Moroy3

  • 1Unité du sommeil, Fédération de Neurologie, Hôpital Fondation Adolphe de Rothschild, 75019 Paris, France.

L'Encephale
|June 16, 2026
PubMed
Summary
This summary is machine-generated.

Sleep disturbances like insomnia and nightmares are linked to suicidal behaviors, even without psychiatric disorders. Addressing sleep issues can improve suicide risk detection and prevention.

Keywords:
CBTCauchemarsCircadian rhythmsHypnoticsHypnotiquesIdées suicidairesInsomniaInsomnieNightmaresPrévention du suicideRythmes circadiensSleep disturbancesSuicidal ideationSuicideSuicide preventionTCCTroubles du sommeil

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Area of Science:

  • Neuroscience
  • Psychiatry
  • Sleep Medicine

Background:

  • Suicidal behaviors pose a significant global health challenge.
  • Identifying modifiable risk factors is key for prevention.
  • Sleep disturbances are often underestimated as a risk factor for suicide.

Purpose of the Study:

  • To synthesize evidence on the association between sleep disturbances and suicidal behaviors.
  • To explore underlying mechanisms and therapeutic interventions.
  • To highlight the importance of sleep assessment in suicide risk evaluation.

Main Methods:

  • Review of epidemiological, clinical, and neurobiological studies.
  • Analysis of subjective (e.g., insomnia, nightmares) and objective (e.g., actigraphy) sleep markers.
  • Examination of potential neurobiological and psychosocial mechanisms.

Main Results:

  • Consistent association found between sleep disturbances (insomnia, nightmares, abnormal duration, circadian disruption) and suicidal behaviors, independent of psychiatric disorders.
  • Objective sleep measures like nocturnal wakefulness and REM alterations correlate with suicide risk.
  • Potential mechanisms include inflammation, neurotransmitter dysregulation, altered brain connectivity, and psychosocial factors.

Conclusions:

  • Systematic assessment and treatment of sleep disturbances are crucial for improving suicide risk detection.
  • Integrating sleep-related assessments and interventions can enhance suicide prevention strategies.