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Ganban-yoku (hot-stone bed bathing)
A listing is not a recommendation.
Origin: Japan · Tradition: Japanese heated-facility culture · Heat & water
What it is
A heat practice of lying on warmed stone and sweating. The form is often a lower temperature than a sauna, for a longer time.
A short introduction (not a treatment instruction)
- Follow the facility’s guidance and time limits. Take water.
- Finish at once if you feel unwell.
- Do not do this after drinking alcohol.
Symptoms or aims often mentioned with this practice
- Tiredness
- Muscle stiffness
- Feeling cold easily
- Stress or unease
Related symptom videos
Research notes (this is not a promise of effect)
C: Preliminary, small, or lower-quality studies, or mixed results. These notes should not be over-read
Large RCTs unique to ganban-yoku are few. As heat and sweating, sauna research is a reference, but it is not the same practice.
Sources
Safety notes
Dehydration, overheating, and low-temperature burns (when sensation is reduced).
If you are unsure, or if you have a health condition, are pregnant, or take medicine, consult a qualified professional.
Situations in which this is better avoided
- Unstable heart disease
- High-heat exposure in pregnancy
- Reduced sensation
- After drinking alcohol