Cited by 161Sleep and related disordersStress Responses and CortisolSleep and Wakefulness Research

HPA axis activity in patients with chronic insomnia: A systematic review and meta-analysis of case–control studies

Dressle, Raphael J., Feige, Bernd, Spiegelhalder, Kai, Schmucker, Christine, Benz, Fee, Mey, Nina C., Riemann, Dieter·2022·Sleep Medicine Reviews

Abstract

Insomnia is a highly prevalent disorder and a state of 24 h hyperarousal is considered as a key factor of this condition. Various physiological markers of hyperarousal have been investigated, including the activity of the HPA axis. However, these studies yielded heterogenous results. The aim of this study was to qualitatively and quantitatively evaluate whether there are differences in cortisol levels, the hormonal end product of the HPA axis, between patients with insomnia and good sleeper controls (GSC). The databases PubMed, Cinahl, PsycInfo, PsycArticles and Web of Science were searched for case-control studies comparing cortisol levels in patients with insomnia and GSC. Twenty studies (449 patients with insomnia, limited to ages 18-70 not taking any medications; 357 GSC) met the inclusion criteria. For each study, standardized mean differences (SMD) were calculated as a measure of effect size. Results suggest that patients with insomnia show moderately increased cortisol levels (SMD = 0.50, 95% CI: [0.21-0.80]). Higher effect sizes were found by including only studies using blood samples in the analysis (SMD = 0.67, 95% CI: [0.15-1.18]). Furthermore, a positive, but insignificant association was found between the extent of objective sleep loss in insomnia patients and group differences in cortisol levels.

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Crossref · 10.1016/j.smrv.2022.101588

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  • Sleep-related safety behaviors are overt or covert strategies employed to prevent feared outcomes related to poor sleep.

    “Sleep-related safety behaviors are overt or covert strategies employed to prevent feared outcomes related to poor sleep, such as spending excessive time in bed trying to force sleep, using electronic devices for distraction, or napping during the day to compensate for lost rest [17].”

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Authors
Dressle, R. J., Feige, B., Spiegelhalder, K., Schmucker, C., Benz, F., Mey, N. C., & Riemann, D.
Affiliations
University of Freiburg (DE)
Corresponding author
Dressle, Raphael J.
Venue
Sleep Medicine Reviews
Publisher
Elsevier BV
Published
2022-04
Volume
62
Pages
101588
ISSN
1087-0792 (ISSN-L)
OpenAlex
W4206287139
Cited by
161
References
116
Citations by year
2026: 54 · 2025: 56 · 2024: 28 · 2023: 21 · 2022: 2
FWCI
3.92
Type
journal article
Language
en
Open access
closed
Locations
  • Sleep Medicine Reviews (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and related disorders
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
Keywords
chronic insomnia, hypothalamic-pituitary-adrenal axis, cortisol, hyperarousal, sleep deprivation
MeSH terms
Adolescent, Adult, Aged, Humans, Hydrocortisone, Hypothalamo-Hypophyseal System, Sleep Initiation and Maintenance Disorders, Middle Aged, Pituitary-Adrenal System, Case-Control Studies, Young Adult

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