Biomaterial Database

Morningness-eveningness preference and sleep habits in Japanese office workers of different ages. 1992

K Ishihara, and S Miyake, and A Miyasita, and Y Miyata

Department of Child Welfare, Notre Dame Seishin University, Okayama, Japan.

The Japanese version of the morningness-eveningness questionnaire and life habits inventory were administered to approximately 400 workers and the changes in morningness-eveningness scores and sleep-wake habits with aging were investigated. All subjects were divided into four age groups, i.e., 20's, 30's, 40's, and 50 + 60's. Morningness-eveningness scores significantly shifted to morningness preference with increased age. The results of sleep-wake habits showed that 1) there were no age-related changes for habitual sleep parameters (bedtime, arising time, and sleep length), but preferential bed and arising times significantly advanced with aging, 2) the variability of habitual sleep parameters were greater in the young than in the old, especially, on the weekend, and 3) the older the age groups were, the better the mood on arising. These findings suggested that the circadian phase was advanced and/or the period was shortened with increased age.

UI	MeSH Term	Description	Entries
D007564	Japan	A country in eastern Asia, island chain between the North Pacific Ocean and the Sea of Japan, east of the Korean Peninsula. The capital is Tokyo.	Bonin Islands
D008297	Male		Males
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D011795	Surveys and Questionnaires	Collections of data obtained from voluntary subjects. The information usually takes the form of answers to questions, or suggestions.	Community Survey,Nonrespondent,Questionnaire,Questionnaires,Respondent,Survey,Survey Method,Survey Methods,Surveys,Baseline Survey,Community Surveys,Methodology, Survey,Nonrespondents,Questionnaire Design,Randomized Response Technique,Repeated Rounds of Survey,Respondents,Survey Methodology,Baseline Surveys,Design, Questionnaire,Designs, Questionnaire,Methods, Survey,Questionnaire Designs,Questionnaires and Surveys,Randomized Response Techniques,Response Technique, Randomized,Response Techniques, Randomized,Survey, Baseline,Survey, Community,Surveys, Baseline,Surveys, Community,Techniques, Randomized Response
D002940	Circadian Rhythm	The regular recurrence, in cycles of about 24 hours, of biological processes or activities, such as sensitivity to drugs or environmental and physiological stimuli.	Diurnal Rhythm,Nyctohemeral Rhythm,Twenty-Four Hour Rhythm,Nycthemeral Rhythm,Circadian Rhythms,Diurnal Rhythms,Nycthemeral Rhythms,Nyctohemeral Rhythms,Rhythm, Circadian,Rhythm, Diurnal,Rhythm, Nycthemeral,Rhythm, Nyctohemeral,Rhythm, Twenty-Four Hour,Rhythms, Circadian,Rhythms, Diurnal,Rhythms, Nycthemeral,Rhythms, Nyctohemeral,Rhythms, Twenty-Four Hour,Twenty Four Hour Rhythm,Twenty-Four Hour Rhythms
D005260	Female		Females
D006184	Habits	Acquired or learned responses which are regularly manifested.	Habit Disturbances,Habit,Habit Disturbance
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328	Adult	A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available.	Adults
D000375	Aging	The gradual irreversible changes in structure and function of an organism that occur as a result of the passage of time.	Senescence,Aging, Biological,Biological Aging