Health Research DatabaseClaim-to-evidence tracking
HRD Claim Ledger · Living evidence brief

Do infrared saunas lower blood pressure?

Limited direct evidence

Small human studies of infrared sauna or Waon therapy report blood-pressure and vascular changes in selected populations, but the direct evidence remains limited. Results from traditional Finnish sauna or hot-water immersion do not automatically establish that infrared sauna has the same effect.

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01
Evidence profile

What the evidence can—and cannot—support

Human evidenceLimited
Randomized evidenceLimited
ConsistencyUncertain
ReplicationLimited
DirectnessModerate
Long-term outcomesVery limited
Important uncertainty

Larger independent trials using standardized infrared protocols are needed.

02
Research Receipt

An auditable count, not “studies show”

Claim checkedInfrared sauna use lowers blood pressure.
Dataset edition2026-09-18
15matched publications
4randomized trials
1reviews / meta-analyses
0registered trials
0active trials
Reproduce this receipt

Included: Records in the Infrared sauna topic whose high-signal metadata contains at least one outcome term below.

Outcome expression: "blood pressure" OR "hypertension" OR "vascular" OR "endothelial"

Excluded: Records outside the intervention topic, animal-only records rejected by the source query, and records without an outcome-term match. This is a reproducible index, not a systematic review.

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Matched publications

Why these records count

Each record matched the intervention topic and at least one claim-specific outcome term. Open a record for source metadata and inclusion provenance.

Trial Radar

Evidence that may change the answer

Registration is not a result. Status and dates come from ClinicalTrials.gov.

No directly matched registered trials are in the current indexed snapshot.
Cite this page

Make the evidence trail portable.

Health Research Database. “Do infrared saunas lower blood pressure?” HRD Claim Ledger. Dataset 2026-09-18. Accessed 2026-09-18.

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