The deterioration of sleep quality due to aging is more pronounced in women than in men, with Professor Lee Bao and Professor Toru Nakamura of the Graduate School of Basic Engineering, Osaka University, Professor Yoshiharu Yamamoto of the Graduate School of Education, the University of Tokyo, and Nagoya. It was found in a study by Professor Junichiro Hayano of the Graduate School of Medicine, Osaka City University.
According to Osaka University, the research group is using biological signal big data attached to 7-hour electrocardiogram recordings for about 24 people collected from all over the country, and indicators related to sleep such as total sleep time, sleep efficiency, sleep latency, and awakening time. Was extracted and analyzed.
As a result, it was objectively shown that the sleep time was the shortest in middle-aged and elderly people, showing a U-shaped change with age, and getting up early to bed early with aging.
When compared by gender, females sleep about 30 minutes shorter than males, a tendency that is more pronounced in those over 30 years of age.It was clarified that the reason for this was that although the wake-up time was almost the same as that of men, the wake-up time was late and the deterioration of sleep quality due to aging was more remarkable than that of men.
The research group suspects that in addition to the effects of biological aging, social, cultural, and family factors peculiar to Japan may be involved in a complex manner.
Until now, most large-scale sleep research has been conducted by subjective methods such as interviews and distribution of questionnaires, and has the drawback of lacking objectivity of the obtained findings.Therefore, the research group used sleep indicators, which are difficult to evaluate subjectively, as analysis materials.
Paper information:[Scientific Reports] Age and gender differences in objective sleep properties using large-scale body acceleration data in a Japanese population
