Evidence map›Paper›PMID 33571126›Full record

ArticleScience advances2021

Moonstruck sleep: Synchronization of human sleep with the moon cycle under field conditions.

Leandro Casiraghi, Ignacio Spiousas, Gideon P Dunster, Kaitlyn McGlothlen, Eduardo Fernández-Duque, Claudia Valeggia, Horacio O de la Iglesia

Open access · goldAbstract read
In one paragraph

Article in Science advances, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
5.2field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

32 citing papers in PubMed, 64 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Revitalizing the "biology" in "chronobiology".Npj biological timing and sleep · 2026
    Review
  5. Review
  6. Review
  7. Article
  8. Lunar gravity predicts sleep timing.bioRxiv : the preprint server for biology · 2026
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Review
  17. Review
  18. Article
  19. Review
  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 2 countries.

Leandro CasiraghiDepartment of Biology, University of Washington, Seattle, WA, USA.ORCID 0000-0002-1528-1402
Ignacio SpiousasSensorimotor Dynamics Lab (LDSM), CONICET, Universidad Nacional de Quilmes, Bernal, Argentina.ORCID 0000-0002-0283-4696
Gideon P DunsterDepartment of Biology, University of Washington, Seattle, WA, USA.ORCID 0000-0001-9050-0225
Kaitlyn McGlothlenDepartment of Biology, University of Washington, Seattle, WA, USA.
Eduardo Fernández-DuqueYale University, New Haven, CT, USA.ORCID 0000-0002-3993-7912
Claudia ValeggiaYale University, New Haven, CT, USA.ORCID 0000-0003-3589-6890
Horacio O de la IglesiaDepartment of Biology, University of Washington, Seattle, WA, USA. horaciod@uw.edu.ORCID 0000-0003-0855-6807
University of Washington · USYale University · USNational University of Quilmes · AR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Before the availability of artificial light, moonlight was the only source of light sufficient to stimulate nighttime activity; still, evidence for the modulation of sleep timing by lunar phases is controversial. Here, we use wrist actimetry to show a clear synchronization of nocturnal sleep timing with the lunar cycle in participants living in environments that range from a rural setting with and without access to electricity in indigenous Toba/Qom communities in Argentina to a highly urbanized postindustrial setting in the United States. Our results show that sleep starts later and is shorter on the nights before the full moon when moonlight is available during the hours following dusk. Our data suggest that moonlight likely stimulated nocturnal activity and inhibited sleep in preindustrial communities and that access to artificial light may emulate the ancestral effect of early-night moonlight.

Identifiers

PMID33571126
PMCPMC7840136
OpenAlexW3124031193

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.