Cited by 408Stress Responses and CortisolSleep and Wakefulness ResearchCircadian rhythm and melatonin

The DOI matches its Crossref record; 150 of the 155 references it cites were found in a registry or an index; 1 of the 116 sources its claims cite were checked for support.

Impact of Sleep and Its Disturbances on Hypothalamo-Pituitary-Adrenal Axis Activity

Open access
Balbo, Marcella, Leproult, Rachel, Van Cauter, Eve·2010·International Journal of Endocrinology

Abstract

The daily rhythm of cortisol secretion is relatively stable and primarily under the influence of the circadian clock. Nevertheless, several other factors affect hypothalamo-pituitary-adrenal (HPA) axis activity. Sleep has modest but clearly detectable modulatory effects on HPA axis activity. Sleep onset exerts an inhibitory effect on cortisol secretion while awakenings and sleep offset are accompanied by cortisol stimulation. During waking, an association between cortisol secretory bursts and indices of central arousal has also been detected. Abrupt shifts of the sleep period induce a profound disruption in the daily cortisol rhythm, while sleep deprivation and/or reduced sleep quality seem to result in a modest but functionally important activation of the axis. HPA hyperactivity is clearly associated with metabolic, cognitive and psychiatric disorders and could be involved in the well-documented associations between sleep disturbances and the risk of obesity, diabetes and cognitive dysfunction. Several clinical syndromes, such as insomnia, depression, Cushing's syndrome, sleep disordered breathing (SDB) display HPA hyperactivity, disturbed sleep, psychiatric and metabolic impairments. Further research to delineate the functional links between sleep and HPA axis activity is needed to fully understand the pathophysiology of these syndromes and to develop adequate strategies of prevention and treatment.

Overview

AI snapshot

Written from the paper’s full text.

TL;DR

This review summarizes evidence that sleep has modest but detectable modulatory effects on hypothalamo-pituitary-adrenal (HPA) axis activity, with sleep onset inhibiting cortisol and awakenings stimulating it. It argues that sleep loss, shifted sleep, and sleep disruption can activate the HPA axis and that HPA hyperactivity is linked with insomnia, depression, Cushing's syndrome, and sleep disordered breathing.

Key findings

  • Sleep onset exerts a modest inhibitory effect on cortisol lasting 1–2 hours, while nocturnal awakenings transiently elevate cortisol and final morning awakening produces a rapid rise persisting about one hour.
  • Abrupt 8-hour sleep-wake delays profoundly disrupt the 24-hour cortisol rhythm: on the first shifted day, the quiescent period was reduced by more than 3 hours, relative amplitude fell by approximately 40%, and the acrophase was delayed by about 3 hours 30 minutes; by day 5 the profile had essentially adapted.
  • An 8-hour advance shifted the nadir by about 3 hours 20 minutes and reduced the quiescent period mainly via an advance of its offset by more than 3 hours, with the rising phase lengthened by nearly 3 hours and no shift in acrophase.
  • Partial sleep restriction elevated evening cortisol: after 6 nights of 4 hours in bed in 11 young men, the quiescent period onset was delayed by nearly 1.5 hours and salivary free cortisol decline from 16:00 to 21:00 was about six times slower than when fully rested; after only 1 night of 4 hours in bed, plasma cortisol over 18:00–23:00 was 37% higher and quiescent onset occurred 1 hour later.

Methods

  • Narrative review of human and animal studies on sleep, sleep disturbances, and HPA axis activity, including experimental protocols such as constant routine, shifted sleep, ultradian schedules, total sleep deprivation, partial sleep restriction, sleep-stage suppression, and sleep fragmentation.
  • Synthesizes findings from clinical syndromes including insomnia, major depression, Cushing's syndrome, and sleep disordered breathing/obstructive sleep apnea, with cited sample sizes and outcomes where reported.
  • No primary data collection or new statistical analysis is reported; the paper is a qualitative synthesis of the literature.

Limitations

  • The paper states that further research is needed to delineate functional links between sleep and HPA axis activity and to understand the pathophysiology of associated syndromes.
  • It explicitly notes contradictory findings and methodological limitations in sleep-deprivation and SDB studies, including small sample sizes, variable sleep-recording hours, variable SDB severity, single-time-point cortisol measures, and variable CPAP compliance.
  • Evident from the text: as a narrative review, it does not describe a systematic search strategy, formal quality assessment, or quantitative meta-analysis.

Model-written summary. Check it against the paper before relying on it.

Integrity signals

Registry

Crossref · 10.1155/2010/759234

Cites

150 of 150 references verified0 citation errors · 0 not checkable

Statistics

Nothing to recompute.

Figures

Figure 1 24-hour individual cortisol profile (solid line).The smoothing curve (dotted line) is calculated to determine the minimum (nadir), the maximum (acrophase), the onset of the circadian rise, and the amplitude (50% of the difference between the acrophase and the nadir) of the cortisol profile. The black bar represents the sleep period.
Figure 1 24-hour individual cortisol profile (solid line).The smoothing curve (dotted line) is calculated to determine the minimum (nadir), the maximum (acrophase), the onset of the circadian rise, and the amplitude (50% of the difference between the acrophase and the nadir) of the cortisol profile. The black bar represents the sleep period.CC BY · PubMed Central
Figure 2 Effects of age and sex on cortisol profile: Mean 24-hour (+ or − SEM) cortisol profiles in men (left profiles) and women (right profiles) for 2 age groups that is, 50 years of age and older (solid lines) and 20 to 29 years old (hatched lines). (adapted from Van Cauter [30])
Figure 2 Effects of age and sex on cortisol profile: Mean 24-hour (+ or − SEM) cortisol profiles in men (left profiles) and women (right profiles) for 2 age groups that is, 50 years of age and older (solid lines) and 20 to 29 years old (hatched lines). (adapted from Van Cauter [30])CC BY · PubMed Central
Figure 3 Effect of an 8-hour sleep delay on cortisol profiles. Mean 24-hour (+ SEM) cortisol profiles under baseline conditions (bedtimes from 23:00 to 7:00), and one, three, five days after an 8-hour delay of the sleep-wake and dark-light cycles (bedtimes from 7:00 to 15:00). Black bars represent the sleep periods. (Adapted from Buxton et al. [67].)
Figure 3 Effect of an 8-hour sleep delay on cortisol profiles. Mean 24-hour (+ SEM) cortisol profiles under baseline conditions (bedtimes from 23:00 to 7:00), and one, three, five days after an 8-hour delay of the sleep-wake and dark-light cycles (bedtimes from 7:00 to 15:00). Black bars represent the sleep periods. (Adapted from Buxton et al. [67].)CC BY · PubMed Central
Figure 4 Effect of an 8-hour sleep advance on cortisol profiles. Mean (+ SEM) cortisol profiles obtained during 68 consecutive hours including baseline conditions and 2 postshift periods, that is, after an 8-hour advance of the sleep-wake and dark-light cycles. Black bars represent the sleep periods whereas wake time was spent in dim light conditions. (Adapted from Caufriez et al. [68].)
Figure 4 Effect of an 8-hour sleep advance on cortisol profiles. Mean (+ SEM) cortisol profiles obtained during 68 consecutive hours including baseline conditions and 2 postshift periods, that is, after an 8-hour advance of the sleep-wake and dark-light cycles. Black bars represent the sleep periods whereas wake time was spent in dim light conditions. (Adapted from Caufriez et al. [68].)CC BY · PubMed Central
Figure 5 Inverse “dose-response” relationship between evening cortisol levels and sleep duration. Mean 24-hour (+ SEM) cortisol profiles and AUC (black areas) under 4 hours, 8 hours, and 12 hours bedtimes. Black bars represent the sleep periods. (Adapted from Spiegel et al. [84].)
Figure 5 Inverse “dose-response” relationship between evening cortisol levels and sleep duration. Mean 24-hour (+ SEM) cortisol profiles and AUC (black areas) under 4 hours, 8 hours, and 12 hours bedtimes. Black bars represent the sleep periods. (Adapted from Spiegel et al. [84].)CC BY · PubMed Central
Figure 6 Cortisol rhythm under different sleep conditions. (a) and (b): 24-hour (+ SEM) cortisol profiles under 4 hours (a) and 12 hours (b) bedtimes (Adapted from Spiegel et al. [84]). (c) and (d): 24-hour (+ SEM) cortisol profiles in young insomniacs (c) and age, and BMI-matched controls (d) (Adapted from Vgontzas et al. [105]). Black bars represent the sleep periods.
Figure 6 Cortisol rhythm under different sleep conditions. (a) and (b): 24-hour (+ SEM) cortisol profiles under 4 hours (a) and 12 hours (b) bedtimes (Adapted from Spiegel et al. [84]). (c) and (d): 24-hour (+ SEM) cortisol profiles in young insomniacs (c) and age, and BMI-matched controls (d) (Adapted from Vgontzas et al. [105]). Black bars represent the sleep periods.CC BY · PubMed Central

Verification

Claims the paper makes

74 Not checked yet · 11 Own interpretation · 2 Own result · 2 No basis given · 1 Supported

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Show all 51 claims

  • It may state two separate claims as one. 32
  • Probably not a substantial claim. 8
39 of 39
  • The paper relies on this without support.

    HPA hyperactivity is clearly associated with metabolic, cognitive and psychiatric disorders.

    “HPA hyperactivity is clearly associated with metabolic, cognitive and psychiatric disorders”
  • The paper relies on this without support.

    Several clinical syndromes, such as insomnia, depression, Cushing's syndrome, and sleep disordered breathing, display HPA hyperactivity, disturbed sleep, psychiatric and metabolic impairments.

    “Several clinical syndromes, such as insomnia, depression, Cushing's syndrome, sleep disordered breathing (SDB) display HPA hyperactivity, disturbed sleep, psychiatric and metabolic impairments.”
  • The paper relies on this without support.

    Sleep onset exerts a modest but clearly detectable inhibitory effect on the activity of the HPA axis.

    “Given the modest but clearly detectable inhibitory effect exerted by sleep onset on the activity of the HPA axis, it has been hypothesized that sleep loss might increase cortisol levels.”
3 of 3

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Citations

Cites

Show all 155 references

Research works printed but not linked: 19

  1. 1995, Sleep, 18, 549
  2. 1998, Hormone and Metabolic Research, 30, 311
  3. 2000, American Journal of Physiology, 279, R1357
  4. 1974, Journal of Clinical Endocrinology and Metabolism, 38, 1018, 10.1210/jcem-38-6-1018 · DOI · Paper page
  5. 1985, Journal of Endocrinological Investigation, 8, 381, 10.1007/bf03348519 · DOI · Paper page
  6. 2004, Current Opinion in Neurobiology, 26, 221
  7. 1998, Journal of Clinical Endocrinology and Metabolism, 83, 4263
  8. 2000, Sleep, 23, 915
  9. 1997, Sleep, 20, 865
  10. 1994, Journal of Clinical Endocrinology and Metabolism, 79, 1797
  11. 2005, Morbidity and Mortality Weekly Report, 54, article 933
  12. 2002, Organization of the brainstem
  13. 2007, Journal of Clinical Sleep Medicine, 3, S7
  14. 2001, Revue Neurologique, 157, S57
  15. 2007, Acta Psychiatrica Scandinavica. Supplementum, 31
  16. 2000, Sleep Research Online, 3, 15
  17. 1996, Zhongguo Yao Li Xue Bao, 17, 489
  18. 1989, American Review of Respiratory Disease, 139, article a80
  19. 1991, American Review of Respiratory Disease, 143, article a382

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Metadata

Authors
Balbo, M., Leproult, R., & Van Cauter, E.
Affiliations
  • University of Chicago (US)
  • Sleep, Chronobiology and Neuroendocrinology Research Laboratory, Department of Medicine, The University of Chicago, Chicago, IL 60637, USA
Venue
International Journal of Endocrinology
Publisher
Wiley
Published
2010
Volume
2010
Pages
1-16
ISSN
  • 1687-8337 (ISSN-L)
  • 1687-8345
OpenAlex
W2013718939
Cited by
408
References
155
Citations by year
2026: 50 · 2025: 43 · 2024: 40 · 2023: 31 · 2022: 26 · 2021: 32 · 2020: 19 · 2019: 22 · 2018: 24 · 2017: 17 · 2016: 14 · 2015: 21 · 2014: 16 · 2013: 17 · 2012: 20
FWCI
7.30
Type
journal article
Language
en
Open access
Locations
  • International Journal of Endocrinology (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Dépôt institutionnel de l'Université libre de Bruxelles (Université Libre de Bruxelles) (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Topics
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
Keywords
sleep, sleep disorders, hypothalamic-pituitary-adrenal axis, cortisol secretion, circadian rhythm, sleep deprivation, sleep quality, insomnia, depression, Cushing's syndrome, sleep-disordered breathing, obesity, diabetes mellitus, cognitive impairment

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