1972 年 36 巻 1-2 号 p. 15-20
It was clarified that the effects of hot spring water bathing are not common to all the waters, but they differ by the quality of water.
Bathing in fresh hot spring water, which is said to be effective, increases and decreaess electrolyte in connetive tissue a great deal.
It seems to be one of the factors in the effects of hot spring water bathing.