著者
大野 敦子 佐久川 千津子 矢田 幸博
出版者
日本生理人類学会
雑誌
日本生理人類学会誌 (ISSN:13423215)
巻号頁・発行日
vol.25, no.2, pp.23-32, 2020-05-25 (Released:2020-05-25)
参考文献数
24

We have previously reported black tea aroma exhibits a sedative effect by suppressing sympathetic nerve activity and elevating parasympathetic nerve activity. Enhancement of sleep quality is also expected from the sedative effect of this aroma. The effect of black tea aroma on sleep in 20 women with high stress consciousness and sleep disorders; was evaluated in this study using data collected from questionnaires and physical activity measured over a 14 day test period. Psychological effects of reduced stress consciousness were improvement in sleep quality, and greater satisfaction with ease in falling and staying asleep; while physiological data showed reduced sleep latency, an increase in total sleep time, and a significant increase in sleep efficiency. These results strongly suggest black tea aroma improves overall sleep.
著者
大野 敦子 佐久川 千津子 矢田 幸博
出版者
日本生理人類学会
雑誌
日本生理人類学会誌 (ISSN:13423215)
巻号頁・発行日
vol.27, no.1, pp.10-22, 2022-02-25 (Released:2022-02-25)
参考文献数
62
被引用文献数
1

In this study, the effects of black tea aroma on sleep and psychological and cognitive functions were investigated in community-dwelling elderly women. Nocturnal inhalation of black tea aroma significantly shortened sleep latency and bed out latency while significantly increasing sleep efficiency. In the evaluation of psychological function using the MOS 36-Item Short Form Health Survey subscale, physical functioning and vitality significantly improved, and the evaluation of cognitive function showed a significant decrease in short-term memory reaction times. Significant correlations were found between shortened sleep latency and shorter short-term memory reactions, shortened sleep latency and higher Mini-Mental State Examination scores, shortened bed out latency and lower Athens Insomnia Scale scores, and shortened bed out latency and lower Self-rating Depression Scale scores. These results suggest that improved sleep onset and awakening resulting from nighttime exposure to black tea aroma may improve cognitive function and reduce the feeling of insomnia and depression.