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Cited by 437Circadian rhythm and melatoninSleep and Work-Related FatigueSleep and related disorders

The DOI matches its Crossref record; 25 of the 25 references it cites were found in a registry or an index.

Association of sleep-wake habits in older people with changes in output of circadian pacemaker

Czeisler, C.A, Dumont, M, Duffy, J.F, Steinberg, J.D, Richardson, G.S, Brown, E.N, Sánchez, R, Ríos, C.D, Ronda, J.M·1992·The Lancet
DOI 10.1016/0140-6736(92)92817-y
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Abstract

Many elderly people complain of disturbed sleep patterns but there is not evidence that the need to sleep decreases with age; it seems rather that the timing and consolidation of sleep change. We tried to find out whether there is a concurrent change in the output of the circadian pacemaker with age. The phase and amplitude of the pacemaker's output were assessed by continuous measurement of the core body temperature during 40 h of sustained wakefulness under constant behavioural and environmental conditions. 27 young men (18-31 years) were compared with 21 older people (65-85 years; 11 men, 10 women); all were healthy and without sleep complaints. The mean amplitude of the endogenous circadian temperature oscillation (ECA) was 40% greater in young men than in the older group. Older men had a lower mean temperature ECA than older women. The minimum of the endogenous phase of the circadian temperature oscillation (ECP) occurred 1 h 52 min earlier in the older than in the young group. Customary bedtimes and waketimes were also earlier in the older group, as was their daily alertness peak. There was a close correlation between habitual waketime and temperature ECP in young men, which may lose precision with age, especially among women. These findings provide evidence for systematic age-related changes in the output of the human circadian pacemaker. We suggest that these changes may underlie the common complaints of sleep disturbance among elderly people. These changes could reflect the observed age-related deterioration of the hypothalamic nuclei that drive mammalian circadian rhythms.

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Crossref · 10.1016/0140-6736(92)92817-y

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Citations

Cites

Research works printed but not linked: 2

  1. Dumont, 1990, Endogenous circadian phase and amplitude in elderly patients with a complaint of insomnia, Sleep Res, 19, 217
  2. Campbell, 1991, Bright light treatment of sleep disturbance in older subjects, Sleep Res, 20, 448

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Metadata

Authors
Czeisler, C. A., Dumont, M., Duffy, J. F., Steinberg, J. D., Richardson, G. S., Brown, E. N., Sánchez, R., Ríos, C. D., & Ronda, J. M.
Affiliations
Brigham and Women's Hospital (US)
Corresponding author
Czeisler, C.A
ORCID
Venue
The Lancet
Publisher
Elsevier BV
Published
1992-10
Volume
340
Issue
8825
Pages
933-936
ISSN
  • 0099-5355 (ISSN-L)
  • 0140-6736
DOI
10.1016/0140-6736(92)92817-y
OpenAlex
W2052495561
Cited by
437
References
25
Citations by year
2026: 3 · 2025: 17 · 2024: 9 · 2023: 13 · 2022: 12 · 2021: 13 · 2020: 8 · 2019: 10 · 2018: 12 · 2017: 16 · 2016: 11 · 2015: 10 · 2014: 9 · 2013: 11 · 2012: 9
FWCI
8.02
Type
journal article
Language
en
Open access
closed
Licence
www.elsevier.com/tdm/userlicense/1.0/ (tdm)
Locations
  • The Lancet (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institute on Aging (R01AG006072, 1-RO1-AG06072, 1-P01-AG-09975, P01AG009975)
  • National Institute of Mental Health (H5-ROI-MH45130)
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and Work-Related Fatigue
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and related disorders
Keywords
circadian pacemaker, aging, core body temperature, circadian rhythm, alertness, hypothalamic nuclei, sex differences
MeSH terms
Adult, Aged, Aged, 80 and over, Aging, Body Temperature, Circadian Rhythm, Female, Humans, Male, Sex Factors, Sleep Deprivation, Time Factors

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