Cited by 99Circadian rhythm and melatoninSleep and related disordersSleep and Wakefulness Research

The DOI matches its Crossref record.

Day-time melatonin administration: Effects on core temperature and sleep onset latency

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REID, KATHRYN, VAN DEN HEUVEL, CAMERON, DAWSON, DREW·1996·Journal of Sleep Research

Abstract

Significant hypothermic and hypnotic effects have been reported for melatonin at a wide range of doses. It has been suggested that this decrease in core temperature (Tc) following melatonin administration may mediate the observed increase in sleepiness. To test this, melatonin was administered to young adults during the day, and the concurrent effects on Tc and sleep onset latency (SOL) were recorded. Sixteen healthy males received either a 5 mg oral formulation of melatonin or placebo at 14.00 hours. Core temperature was recorded continuously. Sleep onset latency to stage 1 (SOL1) and stage 2 (SOL2) were recorded using an hourly multiple sleep latency test (MSLT). Compared with placebo, melatonin significantly decreased Tc 1.5 h after administration for 6 h. Between 15.00 and 18.00 hours, the drop in Tc was associated with a concurrent decrease in SOL1 and SOL2. Following administration mean SOL1 and SOL2 were reduced by 40 and 25%, respectively. In this study, daytime melatonin administration produced a significant decrease in Tc with a corresponding decrease in SOL. Taken together, these data are not inconsistent with the suggestion that melatonin may facilitate sleep onset via a hypothermic effect. In addition, this study provides support for the idea that melatonin may play a role in regulating circadian and/or age-related variations in sleep/wake propensity. From a practical perspective, exogenous melatonin may be useful in the treatment of sleep disorders associated with increased nocturnal Tc.

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Crossref · 10.1046/j.1365-2869.1996.t01-1-00006.x

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Metadata

Authors
REID, K., VAN DEN HEUVEL, C., & DAWSON, D.
Affiliations
  • The University of Adelaide (AU)
  • University of South Australia (AU)
Corresponding author
REID, KATHRYN
Venue
Journal of Sleep Research
Publisher
Wiley
Published
1996-09
Volume
5
Issue
3
Pages
150-154
ISSN
  • 0962-1105 (ISSN-L)
  • 1365-2869
OpenAlex
W2061723056
Cited by
99
References
0
Citations by year
2026: 2 · 2025: 1 · 2024: 1 · 2023: 5 · 2022: 7 · 2021: 1 · 2019: 3 · 2018: 1 · 2016: 1 · 2015: 2 · 2014: 2 · 2013: 3 · 2012: 1
FWCI
1.73
Type
journal article
Language
en
Open access
Locations
  • Journal of Sleep Research (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and related disorders
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
Keywords
melatonin, core body temperature, sleep latency, hypothermic effect, hypnotic effects, sleepiness, circadian rhythm, sleep disorders, multiple sleep latency test
MeSH terms
Adult, Body Temperature, Electroencephalography, Humans, Male, Melatonin, Sleep, Sleep Stages

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