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CC BY-NC-ND 4.0 · Sleep Sci 2020; 13(04): 286-292
DOI: 10.5935/1984-0063.20190151
Short Communications

Associations of adolescents’ lifestyle habits with their daytime functioning in Japan

Jun Kohyama
1   Tokyo Bay Urayasu Ichikawa Medical Centre, Sleep medicine - Urayasu - Chiba - Japan
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Objective To assess associations of adolescents’ lifestyle habits with their daytime functioning in Japan.

Methods A total of 2,722 questionnaires obtained from pupils in grades 5 to 12 in Japan were assessed by the multiple comparison test to determine significant differences in the lifestyle habits among the self-reported academic performance categories (AP1: very good; AP2: good; AP3: not good; AP4: poor).

Results The average non-school-day screen time of AP4 pupils was significantly longer than that of AP1 pupils in elementary and junior high schools. In junior and senior high schools, AP4 pupils showed more sleepiness and higher occurrence of breakfast skipping than AP2 pupils. In all school types, sleep duration showed no significant differences among the self-reported academic performance categories.

Discussion Avoiding sleepiness, breakfast skipping, and heavy media usage is expected to ensure adolescents’ daytime functioning. Although not studied here, napping might improve adolescents’ daytime functioning.

Screen Time - Academic Performance - Sleepiness - Breakfast


Publication History

Received: 29 January 2020

Accepted: 04 May 2020

Article published online:
09 November 2023

© 2023. Brazilian Sleep Association. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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  • References

  • 1 Stea TH, Knutsen T, Torstveit MK. Association between short time in bed, health-risk behaviors and poor academic achievement among Norwegian adolescents. Sleep Med 2014;15(6):666-71.
  • 2 Sun Y, Sekine M, Kagamimori S. Lifestyle and overweight among Japanese adolescents: the Toyama Birth Cohort Study. J Epidemiol. 2009;19(6):303-10.
  • 3 Arora T, Hosseini-Araghi M, Bishop J, Yao GL, Thomas GN, Taheri S. The complexity of obesity in U.K. adolescents: relationships with quantity and type of technology, sleep duration and quality, academic performance and aspiration. Pediatr Obes. 2013;8(5):358-66.
  • 4 Kohyama J. Self-reported academic performance and lifestyle habits of school children in Japan. Int J Child Health Nutr. 2017;6(3):90-7.
  • 5 Wolfson AR, Carskadon MA. Sleep schedules and daytime functioning in adolescents. Child Dev 1998;69(4):875-87.
  • 6 Cohen-Zion M, Shiloh E. Evening chronotype and sleepiness predict impairment in executive abilities and academic performance of adolescents. Chronobiol Int 2018;35(1):137-45.
  • 7 Dewald JF, Meijer AM, Oort FJ, Kerkhof GA, Bögels AM. The influence of sleep quality, sleep duration and sleepiness on school performance in children and adolescents: A meta-analytic review. Sleep Med Rev 2010;14(3):179-89.
  • 8 Moore M, Meltzer LJ. The sleepy adolescent: causes and consequences of sleepiness in teens. Paediatr Respir Rev 2008;9(2):114-20.
  • 9 Japan Society of School Health. Annual reports on health of children attending elementary schools, junior high schools, and high schools in 2014 (in Japanese). Tokyo: Japan Society of School Health; 2016.
  • 10 Paruthi S, Brooks LJ, D’Ambrosio C, Hall WA, Kotagal S, Lloyd RM, et al. Recommended amount of sleep for pediatric populations: a consensus statement of the American Academy of Sleep Medicine. J Clin Sleep Med 2016;12(6):785-6.
  • 11 Takeuchi H, Taki Y, Nouchi R, Yokoyama R, Kotozaki Y, Nakagawa S, et al. Shorter sleep duration and better sleep quality are associated with greater tissue density in the brain. Sci Rep. 2018;8(1):5833.
  • 12 Owens JA, Dearth-Wesley T, Lewin D, Gioia G, Whitaker RC. Self-regulation and sleep duration, sleepiness, and chronotype in adolescents. Pediatrics. 2016;138(6): e20161406.
  • 13 Alves FR, Avelino de Souza E, Gabrielle de França Ferreira L, de Oliveira Vilar Neto J, Sales de Bruin VM, Carvalhedo de Bruin PF. Sleep duration and daytime sleepiness in large sample of Brazilian high school adolescents. Sleep Medicine, in press.
  • 14 Uchimura N. Sleep and academic performance of high school students [in Japanese]. Prog Med 2015;35:39-41.
  • 15 Burns RD, Fu Y, Brusseau TA, Clements-Nolle K, Yang W. Relationships among physical activity, sleep duration, diet, and academic achievement in a sample of adolescents. Prev Med Rep 2018;12:71-4.
  • 16 Takeuchi H, Taki Y, Asano K, Asano M, Sassa Y, Yokota S, et al. Impact of frequency of internet use on development of brain structures and verbal intelligence: Longitudinal analyses. Hum Brain Mapp. 2018;39(11):4471-9.
  • 17 Ohta M. The fifth report on basic study on learning. Opportunities of learning except for school *Internet+. Okayama: Benesse Corporation; 2015 *June 22, 2019+. Available from: https://berd.benesse.jp/up_images/ research/3_chp3.pdf.).
  • 18 Sticca F, Goetz T, Bieg M, Hall NC, Eberle F, Haag L. Examining the accuracy of students’ self-reported academic grades from a correlational and a discrepancy perspective: Evidence from a longitudinal study. PLoS ONE 2017;12(11):e0187367.
  • 19 Biggs SN, Lushington K, James Martin A, van den Heuvel C, Declan Kennedy J. Gender, socioeconomic, and ethnic differences in sleep patterns in school-aged children. Sleep Med. 2013;14(12):1304-9.
  • 20 Zhang J, Li AM, Fok TF, Wing YK. Roles of parental sleep/wake patterns, socioeconomic status, and daytime activities in the sleep/wake patterns, socioeconomic status, and daytime activities in the sleep/wake patterns of children. J Pediatr 2010;156(4):606-12.