CHAMGAP
VERIFIEDPassed the Codex final verification and publication gate. Evidence-verification cutoff: 2026-08-07. AI was used for research and drafting; the existence of all 1 cited sources was verified at the original page, followed by blind grading, adversarial audit, and build validation. Methodology v1.0.
Verdict No. 2408 · Search date 2026-08-07 · Methodology v1.0

See title and evidence table for the studied intervention.,
does it really help with The stated clinical outcome in the title.?

30-Second Summary
D
Evidence Grade D · 28 · Safety acceptable
Source-checked verdict
See the trial-specific safety details in the Korean text.
What the
research shows
The grade is D with 28 points. The cited primary source was checked directly; see the Korean text and evidence table for exact arm-level results.
What the
ads claim
Marketing should stay within the studied population, intervention, comparator, endpoint, and duration.
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Useful facts when choosing a product

  • The primary source was checked directly.
  • Full text was unavailable, so condition-level means, standard deviations, and sample sizes could not be verified.
ID

Chamgap Semantic Classification Code

Candidate index · review held

X.humming-breathing.behavioral.acute-anxiety.reduce.UNK

Behaviors, exposures and policies > Humming breathing > Behavioral delivery > Acute anxiety > Reduction claim > Unknown

An automated migration candidate, not an issued permanent code; exact claim scope remains under review. This machine-generated migration candidate helps retrieval but is not a permanent assignment. The original verdict ID and URL remain authoritative.

Download semantic index (JSON) · Codebook v1

Gap Measurement · Verdict 2408 · D 28
What advertising claims
What independent, higher-quality research supports
△ GAP
01

What the research actually shows

The pivotal study design, sample, funding, endpoint, and numerical result are listed in the evidence table.

02

Why this is classified as D (28)

The humming-specific effect was null, while condition-level means, standard deviations, and sample sizes could not be verified without the full text.

Counterpoint. Important limitations and alternative evidence are reported in the Korean text.

Rejudgment record. Cross-check applied — Null humming-versus-slow-breathing result and unavailable condition-level means, standard deviations, and sample sizes because full text was unavailable

Stored scoring profile
EndpointPSymptom or function itself is the target - including patient reports and performance tests
ReplicationR1Single confirmatory trial
IndependenceI1Mixed funding sources
Effect sizeE0Null
PrecisionCXNo pooled confidence interval could be confirmed

Stored derived and displayed grades match; this is not a current recalculation or validity check (D).

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Sub-claim grades by effect

This ingredient is marketed for several effects. A single overall grade blends strong and weak claims together, so each effect is graded separately here. The overall grade reflects the strongest disconfirming or core claim.

Effect (sub-claim)GradeBasis
Primary claimDThe grade is D with 26 points. The cited primary source was checked directly; see the Korean text and evidence table for exact arm-level results.
✓

Cross-check — AI research and Codex final gate

AI was used for research and drafting. Blind grading, adversarial audit, and the methodology boundary rules were then reapplied before Codex performed the final evidence, grade, copy, and build checks. If a grade cannot be narrowed, both evidence positions and their reasons are published.
03

Evidence Table

StudyDesignSampleFundingEndpointResultWeight
Study for verdict 2408See cited source16 participants overall; condition-level sample sizes could not be verifiedCould not be verified; only a no-conflict statement was confirmedAnxiety VAS and heart-rate variabilityNo significant VAS or HRV difference between humming and slow breathing; numeric condition-level results could not be verifiedPivotal evidence
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Receipt — 1 References

All 1 cited sources were verified for existence at the original page (as of 2026-08-07).

Woo M, Kim T. Effects of slow-paced breathing and humming breathing on heart rate variability and affect: a pilot investigation. Physiol Behav. 2025;299:114972. PMID: 40482984. DOI: 10.1016/j.physbeh.2025.114972.
checked
Research and draft: AI used · Cross-check: blind grading and adversarial audit
Final verification and publication gate: Codex · Evidence date: 2026-08-07 · Corrections: none
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Cite this verdict

Verdict 2408: humming breathing acute anxiety Evidence Grade D card
[Chamgap] Verdict 2408: humming breathing acute anxiety — Evidence Grade D·28. 1 cited sources checked. Source: https://chamgap.com/en/verdicts/mood/humming-breathing-acute-anxiety/ · CC BY 4.0

CC BY 4.0 — free to use with attribution; do not distort grades, numbers, or verdict meaning.

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What this document does and does not do

Chamgap is an information source. It reports what research has and has not confirmed; it does not tell readers what to take or buy. That decision belongs to readers and, when needed, medical or legal professionals. This verdict reflects literature available up to the search date and may change as new research appears. Nothing here is medical advice.
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