Evidence map›Paper›PMID 40290102›Full record

ArticleHealth psychology and behavioral medicine2025

Unlocking optimism in everyday life: a short-term study on the power of live comedy to reduce stress and anxiety in general public.

Toshiko Tomisawa, Kayo Horie, Naoya In, Naoki Nanashima, Shizuka Takamagi, Kasumi Mikami

Abstract read
In one paragraph

Article in Health psychology and behavioral medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. 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.

Toshiko TomisawaDepartment of Nursing Sciences, Hirosaki University Graduate School of Health Sciences, Aomori Prefecture, Japan.ORCID https://orcid.org/0000-0002-3428-6719
Kayo HorieDepartment of Medical Technology, Hirosaki University Graduate School of Health Sciences, Aomori Prefecture, Japan.ORCID https://orcid.org/0000-0003-4983-3153
Naoya InDepartment of Nursing Sciences, Hirosaki University Graduate School of Health Sciences, Aomori Prefecture, Japan.ORCID https://orcid.org/0000-0001-8653-0069
Naoki NanashimaDepartment of Nutrition, Faculty of Health Sciences, Aomori University of Health and Welfare, Aomori Prefecture, Japan.ORCID https://orcid.org/0000-0002-4729-3432
Shizuka TakamagiDepartment of Nursing Sciences, Hirosaki University Graduate School of Health Sciences, Aomori Prefecture, Japan.ORCID https://orcid.org/0000-0002-6342-7779
Kasumi MikamiDepartment of Nursing Sciences, Hirosaki University Graduate School of Health Sciences, Aomori Prefecture, Japan.ORCID https://orcid.org/0000-0002-5328-0806

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Although there have been many studies on laughter and health, few studies have clarified the effects of laughter on optimism and pessimism, as well as anxiety. The purpose of the study was to evaluate the effects of viewing a comedy live performance on optimism, pessimism, and anxiety, sAA as a stress marker, and examine the relationship between laughter attitude and optimism, pessimism and stress marker and clarify significant factors that contribute to optimism. Methods: In this pre - post study, we evaluated the effects on attendees of laughter elicited by a comedy live performance (CLP). The participants were 110 volunteers aged 18-64 years. Participants attended a two-hour CLP by four famous Japanese comedians (Sisonnu, Tonikaku Akarui Yasumura, Mouchugakusei, and Panther) and completed pre - and post-event questionnaires that included items from the Japanese Optimism and Pessimism Scale (JOPS), State-Trait Anxiety Inventory (STAI), the Laughter Attitude Scale (LAS) and Salivary alpha-amylase (sAA). Results: The valid response rate was 101. Participants' optimism was higher, and pessimism, anxiety and sAA were lower, after attending the CLP. α-amylase was significantly lower in more people before and after CLP. Factors contributing to optimism were strongly influenced by the degree to which people made them laugh, as well as pessimism, anxiety, and forced laughter. Conclusion: The personal factors contributing most strongly to optimism were 'A state that makes you laugh,' as well as pessimism, anxiety, and a low level of 'Forced Laughter.' Attending a two-hour CLP increased optimism and decreased stress level, pessimism and anxiety, these effects were more pronounced in those who laughed regularly in their everyday lives.

Indexed as

comedy live performanceLaughoptimismpessimismsalivary alpha-amylase

Identifiers

PMID40290102
PMCPMC12024504

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.