RESUMO
In order to investigate effects of deep sea water bathing on psycho-physiological status, body temperature, circulatory and autonomic nervous system functions, and questionnaires on refreshment and sleep were evaluated in comparison with other 3 kinds of bathing including sham (no water), surface sea water and tap water. The skin temperatures of both tights and lower back were significantly higher for only deep sea water bathing compared with the sham bathing. It was also the case for tympanic temperature. Concerning circularly and autonomic nervous functions there were no significant difference between 4 kinds of bathing. For refreshment and sleep quality both sea water bathing showed higher scores, but not consistently significant differences. However, when taking any kind of bath shorter sleep latency was related to higher cardiac parasympathetic activity during sleep.