University of Basel, Department of Psychology, Missionsstrasse 62a, 4055 Basel, Switzerland.
J Adolesc. 2013 Apr;36(2):311-8. doi: 10.1016/j.adolescence.2012.11.008. Epub 2013 Jan 11.
Sleep timing undergoes profound changes during adolescence, often resulting in inadequate sleep duration. The present study examines the relationship of sleep duration with positive attitude toward life and academic achievement in a sample of 2716 adolescents in Switzerland (mean age: 15.4 years, SD = 0.8), and whether this relationship is mediated by increased daytime tiredness and lower self-discipline/behavioral persistence. Further, we address the question whether adolescents who start school modestly later (20 min; n = 343) receive more sleep and report better functioning. Sleeping less than an average of 8 h per night was related to more tiredness, inferior behavioral persistence, less positive attitude toward life, and lower school grades, as compared to longer sleep duration. Daytime tiredness and behavioral persistence mediated the relationship between short sleep duration and positive attitude toward life and school grades. Students who started school 20 min later received reliably more sleep and reported less tiredness.
青少年的睡眠模式会发生深刻变化，往往导致睡眠时间不足。本研究在瑞士的 2716 名青少年样本中（平均年龄：15.4 岁，标准差=0.8），考察了睡眠时间与积极的生活态度和学业成绩的关系，以及这种关系是否通过白天疲劳增加和自我约束/行为坚持下降来中介。此外，我们还探讨了这样一个问题，即上学时间稍晚（20 分钟；n=343）的青少年是否会获得更多的睡眠并报告更好的功能。与睡眠时间较长的青少年相比，每晚平均睡眠时间少于 8 小时与疲劳感增加、行为坚持力下降、生活态度更消极、学业成绩更低有关。白天疲劳和行为坚持力在短睡眠时长与生活态度和学业成绩之间起中介作用。上学时间晚 20 分钟的学生睡眠时间更充足，疲劳感也更少。
