Kneipp’s claim was not disease-specific: the same cold-water “reaction” mechanism was offered as an explanation for treating or preventing conditions ranging from digestive and nervous complaints to the tuberculosis Kneipp said he had cured in himself as a young man (Czeranko, 2019). No controlled comparison against untreated patients or standard care was ever conducted in Kneipp’s lifetime; the claim rested on his own case narrative and testimonials collected at Bad Wörishofen. It remains unreplicated as originally stated: no modern trial has evaluated the broad, generalized “reaction cures disease” mechanism itself, as distinct from narrow trials of specific applications for specific conditions (see kneipp-rct-review-insufficient-evidence-2023).