VITAL FORCE (LEBENSKRAFT)
The vital force (Lebenskraft) is the proposed active principle of Hufeland’s macrobiotics, treated here as the case’s ingredient in the same way that the proposed universal fluid is treated for Mesmer (see animal-magnetism-fluid). The provenance category is a schema-fit compromise and is noted as such: the data model has no category for an immaterial vital principle, and “electrical_energy” is used only as the nearest “force or energy” bucket, following the precedent set for Mesmer’s proposed fluid. Hufeland did not claim that the vital force was electrical; that physics-flavoured framing belongs to the Galvani and Mesmer line, not to Hufeland’s vitalism, which treated the Lebenskraft as an innate organismic power borrowed from Blumenbach’s biology. The mechanism Hufeland claimed (a finite vital power, consumed by living, that can be husbanded by regimen to extend life) rests on no measurement and no controlled outcome. Vitalism was superseded by 19th-century physiology, so the regulatory status is recorded as withdrawn in the sense that scientific medicine abandoned the principle. What survived was not the mechanism but a subset of the hygienic advice attached to it.