Evidence map›Paper›PMID 26972732›Full record

ArticleJournal of epidemiology2016

Laughter is the Best Medicine? A Cross-Sectional Study of Cardiovascular Disease Among Older Japanese Adults.

Kei Hayashi, Ichiro Kawachi, Tetsuya Ohira, Katsunori Kondo, Kokoro Shirai, Naoki Kondo

Abstract read
In one paragraph

Article in Journal of epidemiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing 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

27 citing papers in PubMed.

  1. Trial
  2. Beyond Humor: Laughter as a Cardiovascular Stimulus.Arquivos brasileiros de cardiologia · 2026
    Article
  3. Review
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  7. Increasing the health span: unique role for exercise.Journal of applied physiology (Bethesda, Md. : 1985) · 2025
    Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. The Association between Laughter and Functional Dyspepsia in a Young Japanese Population.International journal of environmental research and public health · 2022
    Article
  14. Article
  15. Article
  16. Association between frequency of laughter and oral health among community-dwelling older adults: a population-based cross-sectional study in Japan.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2021
    Article
  17. Article
  18. The Smiles of Older People through Recreational Activities: Relationship between Smiles and Joy.International journal of environmental research and public health · 2021
    Article
  19. Article
  20. 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

6 authors.

Kei HayashiFaculty of Medicine, the University of Tokyo.
Ichiro Kawachi
Tetsuya Ohira
Katsunori Kondo
Kokoro Shirai
Naoki Kondo

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundWe sought to evaluate the associations between frequency of daily laughter with heart disease and stroke among community-dwelling older Japanese women and men.

methodsWe analyzed cross-sectional data in 20 934 individuals (10 206 men and 10 728 women) aged 65 years or older, who participated in the Japan Gerontological Evaluation Study in 2013. In the mail-in survey, participants provided information on daily frequency of laughter, as well as body mass index, demographic and lifestyle factors, and diagnoses of cardiovascular disease, hyperlipidemia, hypertension, and depression.

resultsEven after adjustment for hyperlipidemia, hypertension, depression, body mass index, and other risk factors, the prevalence of heart diseases among those who never or almost never laughed was 1.21 (95% CI, -1.03-1.41) times higher than those who reported laughing every day. The adjusted prevalence ratio for stroke was 1.60 (95% CI, 1.24-2.06).

conclusionsDaily frequency of laughter is associated with lower prevalence of cardiovascular diseases. The association could not be explained by confounding factors, such as depressive symptoms.

Indexed as

LaughterAgedAged, 80 and overCohort StudiesCross-Sectional StudiesFemaleHeart DiseasesHumansIndependent LivingJapanMalePrevalenceRiskStroke

Identifiers

PMID26972732
PMCPMC5037252

What OpenQuestion holds

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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.