A Study on Perceived Health of Morningness-Eveningness Type and Subjective Health.

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  • 朝型‐夜型における自覚的健康度に関する研究
  • アサガタ ヨルガタ ニ オケル ジカクテキ ケンコウド ニ カンスル ケンキュ

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The Japanese version of Home & Östberg's Morningness-Eveningness Questionnaire (MEQ) and a self-administered health questionnaire known as the Todai Health Index (THI) were administered to a group of 143 women, aged 18-23 (average 19.0), who were at the time students in programs of nursing or medical technology. This sample was divided into three groups, 15 definitely and moderately morning, 101 intermediate, and 27 definitely and moderately evening types according to MEQ. These percentages were not so different from the results of other investigators. The morning type and the evening type were compared using the t-test on the 12 scale scores and 2 discriminant values of THI. The evening type group had significantly higher score than the morning type group in the scales of "gmany subjective symptoms" and" irregularity of daily life", and higher but not significant in the scale of "complaints on digestive organ". In other words, the morning type group had more regular daily life, fewer physical and mental symptoms, and fewer complaints on digestive organ than the evening type group. These findings indicate that so-called Morningness-Eveningness relating to the different biochronology phase in daily life, includes a factor of regularity-irregularity in daily life, and closely related to physical and mental symptoms. These results are supported by those obtained from many nvestigations on Morningness-Eveningness.

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