Water
Mineral Springs
Waters that arrive already carrying the earth — warm, mineral-dense springs around which medicine built its first institutions, and balneology still builds its case.
Long before chemistry could say what was in the water, people noticed what the water did. Springs that rose warm, tasting of iron or salt or sulphur, gathered settlements around them; the Romans built towns on them, Japan arranged a whole etiquette of bathing around its onsen, and the spa towns of Europe — Bath, Baden-Baden, Vichy — are mineral springs wearing architecture.
A spring water is groundwater with a biography. Falling rain works its way down through rock for years or centuries, dissolving what it passes through, and surfaces carrying the geology in solution: calcium and magnesium from limestone and dolomite, sulphates, bicarbonates, silica, trace lithium. Warmth, where it occurs, is the deep crust’s heat carried up. Each spring’s mineral signature is as particular as a vintage.
What balneology can actually show
The modern study of healing baths — balneotherapy — has a real if unglamorous evidence base. Reviews find reasonably consistent benefit for osteoarthritic and low-back pain, fibromyalgia symptoms, and certain skin conditions, with effects that persist weeks after the course of bathing ends. The confounds are obvious and cheerfully admitted: a person at a spring is also resting, walking, away from work, immersed in warm water that unloads the joints regardless of what is dissolved in it. Some of the benefit is the minerals; some is the institution of the bath — permission to stop. Transdermal uptake is best demonstrated for Magnesium, which is partly why magnesium-rich waters and salts keep their place in practice.
The library’s reading: mineral bathing is one of the oldest continuously running experiments in human wellbeing, and its results, while modest on paper, have been judged worth repeating by every culture that ever had a hot spring.
Threads through the library
What water does at and near surfaces — and whether “living” water differs from tap water in more than minerals — is taken up in Structured Water. The cold half of the bathing tradition, the plunge pool beside the hot pool, is Cold Immersion.
Threads