RESUMO
The objective evaluation of Psychoneuroendocrinological effects of music is performed in listening and performing. Subjects were classified into 3 groups; a control group and performance/listening groups voluntarily in each 10 subjects. Urine 17-KS-S (abbreviated S) and 17-OHCS (abbreviated OH) were measured before (phase I), after the experiments (phase II) and on the following morning (phase III). They enjoyed listening to their favorite music by stereo sets or performing favorite music instruments. No directions were done on the quality of music. OH showed decreasing effects in both control and performance/listening groups. S showed significant increase in listening group. From a rise of S/OH a wear and tear by stress and a skewness of balance of restoration were corrected. Music is considered that it contributed to relaxation from stress and a wear and tear by the stress and correction of balance of restoration. The fact that the efficacy persisted until the morning of the following day indicates the efficacy persists for a relatively long period of time.