... gentler on the body than the dry heat of a sauna because it softens the skin as it opens pores and ... (efficacy of temperature's stimulation and propitiation, efficacy of vapor)b,Fluidity(sparge, hydraulic pressure)c,Biochemical aspects(solvency, osmosis, diffusivity ... people)Types of hydrotherapy1,Steam bath of Romanesque 2,Finnish sauna 3,Vichy bath 4,Thermal spring bath 5,Herbs steam ...