The influence of school time on sleep patterns of children and adolescents

Skipping breakfast, overconsumption of soft drinks and screen media: longitudinal analysis of the combined influence on weight development in primary schoolchildren

“…Moreover, the investigated variables on children’s weight development could have been complemented by chronobiological aspects. Information on the children’s sleep was not collected, but may also be relevant for their health [44]. As far as school schedules as a further influencing factor on chronobiological aspects are concerned, the included primary schools started between half past seven and eight o’clock and included one or two break times per morning.…”

Morningness–eveningness is not associated with academic performance in the afternoon school shift: Preliminary findings

“…According to previous double‐shift school system studies on sleep habits, morning shift students reported shorter sleep duration and daytime sleepiness and were exposed to bright light earlier than adolescents from the afternoon shift. In contrast, afternoon shift students reported longer times in bed and later rising times and bedtimes and were exposed to bright light later than morning shift students (Anacleto, Adamowicz, Simões da Costa Pinto, & Louzada, ; Arrona‐Palacios, García, & Valdez, ; Carissimi et al ., ; Natal et al ., ). Some studies have analysed the consequences of sleep habits when adolescents change from one school shift to another (e.g., from an afternoon shift to a morning shift).…”

Body mass index and movement behaviors among schoolchildren from 13 countries across a continuum of human development indices: A multinational cross‐sectional study

“…Sleep duration can be affected by many factors including bedtimes (Asarnow, McGlinchey, & Harvey, ), wake‐up times (Carissimi et al, ), availability and excessive use of screens in the bedroom (Falbe et al, ; Hysing et al, ), artificial light (Aulsebrook, Jones, Mulder, & Lesku, ), length of daylight (Wams et al, ), and other contextual or cultural factors. The need for early wake‐up times to accommodate household chores (eg, in rural areas), early school start times (Carissimi et al, ), and longer school commute times in LMICs as contributors to shorter sleep duration, may offset the effects of late bedtimes, artificial lighting or availability of screens in bedrooms for sleep duration among children in high‐income countries. Therefore, it is plausible to speculate that potential epidemiological transition patterning by country‐specific HDI that might be observed may be diminished, given that these factors may differential affect sleep duration among children in LMICs vs high‐income countries.…”

“…The lack of discernible patterns in the site-specific sleep durations by HDIs observed in this study is consistent with our previous study (Manyanga et al, 2018) which showed no evidence of epidemiological transition in the relationship between sleep duration and socioeconomic status. Sleep duration can be affected by many factors including bedtimes (Asarnow, McGlinchey, & Harvey, 2014), wake-up times (Carissimi et al, 2016), availability and excessive use of screens in the bedroom (Falbe et al, 2015;Hysing et al, 2015), artificial light (Aulsebrook, Jones, Mulder, & Lesku, 2018), length of daylight (Wams et al, 2017), and other contextual or cultural factors. The need for early wake-up times to accommodate household chores (eg, in rural areas), early school start times (Carissimi et al, 2016), and longer school commute times in LMICs as contributors to shorter sleep F I G U R E 4 Density curves based on participants with complete data comparing sleep duration between, A, urban and rural participants, B, boys and girls, and, C, participants from LMICs and HCIs.…”