Evidence map›Paper›PMID 39562581›Full record

ArticleScientific reports2024

Global study of long term heart rhythm synchronization in groups.

Nachum Plonka, Mike Atkinson, Rollin McCraty, Germaine Cornelissen, A Chase Turner, Minvydas Ragulskis, Alfonsas Vainoras

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PubMed Full text at PMC Publisher
In one paragraph

Article in Scientific reports, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
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

2 citing papers in PubMed.

  1. Article
  2. Article
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.

Nachum PlonkaThe HeartMath Institute, Boulder Creek, CA, 95006, USA. nachum@heartmath.org.
Mike AtkinsonThe HeartMath Institute, Boulder Creek, CA, 95006, USA.
Rollin McCratyThe HeartMath Institute, Boulder Creek, CA, 95006, USA.
Germaine CornelissenHalberg Chronobiology Center, University of Minnesota, Mayo Mail Code 8609, 420 Delaware St. S.E., Minneapolis, MN, 55455, USA.
A Chase TurnerHalberg Chronobiology Center, University of Minnesota, Mayo Mail Code 8609, 420 Delaware St. S.E., Minneapolis, MN, 55455, USA.
Minvydas RagulskisFaculty of Mathematics and Natural Sciences, Kaunas University of Technology, Kaunas, LT-51368, Lithuania.
Alfonsas VainorasInstitute of Cardiology, Lithuanian University of Health Sciences, Kaunas, LT-50162, Lithuania.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Heart rhythm measurements over time reflect important elements of Autonomic Nervous System dynamics. Synchronization among the heart rhythms of multiple participants has been observed, but this study uses the first global dataset collected that measures synchronization at several locations across the globe continuously for multiple weeks. For 15 days, 104 participants located in California (USA), Lithuania, Saudi Arabia, New Zealand, and England underwent continuous ambulatory heart rhythm monitoring. They were not instructed to perform tasks together. Significant long-term correlations were observed across participants within the same region, for just the groups in Saudi Arabia and New Zealand. This is surprising, given that each participant has an individualized life and distinct heart rate. In a different analysis using population-mean cosinor, only in these two locations was a significant circaseptan (about 7-day) rhythm observed. It appears that weekly rhythms in these groups partially contribute to correlations, in addition to long-term movements. A hypothesis with supporting evidence is proposed to explain this, that participants in these groups were socially closer than in the other groups. It would then appear that heart rhythms synchronize over the long term due to social connectedness, even when they are not physically near each other or performing tasks together.

Indexed as

Heart RateAdultAgedAutonomic Nervous SystemFemaleHumansMaleMiddle AgedNew ZealandSaudi ArabiaAutonomic nervous systemCircaseptan (about 7-day) rhythmHeart rate variabilityHRVSocial connectionSynchronization

Identifiers

PMID39562581
PMCPMC11577063

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Registered trials

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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.