著者

矢島 すみ江 中野 功 麻生 伸代 橘 真美 粥川 裕平

出版者

名古屋工業大学

雑誌

名古屋工業大学紀要 (ISSN:0918595X)

巻号頁・発行日

vol.55, pp.151-157, 2004-03-31

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Objectives: In order to examine the correlation between sleep habits and immunological strength, a question-naire survey was conducted at an annual physical health examination. The questionnaire consisted of fourteen questions regarding sleep habits, annual frequency of catching colds, dietary habits, etc. We considered the frequency of catching colds as one of markers reflecting the immunological strength to viral infection. Subjects and Methods: The 2003 enrollment at Nagoya Institute of Technology consisted of 6,478 students, aged 18 to 35. The questionnaire survey was conducted at the annual physical examination in May 2003. At that time, 4,397 students (67.8% of total enrollment) underwent an annual physical health examination, and the response rate for the questionnaire was 100%. Statistic analysis was performed using a Chi-square test, and p values less than 0.05 were considered significant. Results: Self-reported sleep time among these subjects was 6.62 hours for males and 6.61 hours for females, which means that on this count there was no gender difference. The annual frequency of catching colds was distributed as follows: none (378); once (807); two to four times (2,855); five or more times (352). The mean sleep time of the non-cold-catching group was 6.76 hours; for the group which caught colds five or more times, it was 6.54 hours. There was a significant decrease in the sleep time of the most-frequent cold-catching group. Students in this group slept for less than 6 hours or more than 10 hours nightly. These students also had more irregular dietary schedules, higher intakes of alcohol, and heavier smoking habits in comparison with those in healthier groups. Considerations: If the frequency of common colds represents immunological strength, our finding suggests that sleeping less or sleep loss should be avoided in order to maintain physical health. The reason why long sleepers (longer than 10 hours) easily catch colds is unknown. Morbidity to viral infection does not necessarily correlate to mortality, however, and our finding was consistent with a previous report from USA on longevity and sleep time. A regular life style, sufficient sleep, and a well-balanced diet are indispensable for student health. Further investigation and follow-up study are, of course, needed.

著者

土屋 晶子 北島 剛司 粥川 裕平

出版者

エス・アールアカデミージャパン

雑誌

睡眠医療 : 睡眠医学・医療専門誌 (ISSN:18822096)

巻号頁・発行日

vol.6, no.2, pp.247-252, 2012

著者

粥川 裕平

雑誌

日本時間生物学会会誌: Journal of Chronobiology (ISSN:13449389)

巻号頁・発行日

vol.8, no.2, 2002-10-01

著者

水野 雅紀 岩田 享 加藤昇平 伊藤 英則 粥川裕平 寺島 正義

出版者

一般社団法人情報処理学会

雑誌

情報処理学会研究報告オーディオビジュアル複合情報処理(AVM) (ISSN:09196072)

巻号頁・発行日

vol.2003, no.24, pp.67-72, 2003-03-07

被引用文献数

1

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本論文では,人間の身体から発生している生体信号を測定し,生体信号に含まれているカオス特性をサウンド系列に変換することにより,個人固有のサウンド(マイサウンド)を生成するシステムを提案する.生体信号として指尖容積脈波を採用し,本システムで生成されたマイサウンドを傾聴させ,傾聴者の脳波を測定・解析した.本論文では,癒しとの関連があると考えられるα波の活動を評価することにより,マイサウンドの効果について考察する.In this paper, we propose a sound generation system, which generates an individual sound (called my-sound) peculiar to a personal from his biological signals. In our system, the chaotic characteristics of biological signals are transformed into several sound sequences. My-sound is composed of the several sound sequences. In an experiment, we adopt a finger plethysmogram (pulse-wave) as the biological signal, and have measured the brain-waves of my-sound listeners. In this paper, we also report the investigation of alpha wave, which is considerd to be relative to relaxation, and then discuss the effectiveness of my-sound for healing.