The problem of insufficient sleep is becoming increasingly common and affecting younger people. This study aims to explore the optimal amount of sleep conducive to the academic performance of primary and secondary school students and the heterogeneity of the positive effects. The 2020 Student Academic Quality Monitoring Project in Jiangsu province…

This study investigates smartphone addiction prevalence among Tunisian middle school students and its associations with sleep quality, fatigue, cognitive functioning, and academic achievement. Using structured interviews, we collected demographic data, grade point averages, and phone usage details from 1015 students aged 14-16. Participants also…

To explore the relationships between autistic traits, self-control, mindfulness, and sleep quality, and the mechanism underlying these relationships, we recruited a sample of 972 junior high school students who completed a survey consisting of the Chinese version of the Comprehensive Autistic Trait Inventory-short form, Self-Control Scale, Child…

Background: Research has been inconclusive as to whether stimulant treatment causes or exacerbates sleep problems in adolescents with ADHD. This study examined sleep differences in adolescents with ADHD as a function of stimulant use. Methods: Participants were adolescents with ADHD (N=159, ages 12-14). Parents reported on receipt of stimulant…

Social media addiction (SMA) is considered a risk factor for aggressive behaviors in adolescents, while its underlying mechanisms remains unclear. In this study, we investigated the possible mediating roles of nighttime social media use and sleep quality in the relationship between SMA and aggressive behaviors. A sample of 773 Italian secondary…

Later school start times have emerged as a potential policy to improve the sleep and educational outcomes of teenagers. This study uses a quasi-experimental comparative interrupted time series approach to examine a 90-min delay in start times in an urban district in North Carolina. Results show that the later start time resulted in more sleep for…

The protective nature of adequate sleep during adolescence is poorly understood, particularly regarding social relationships. We explored emotion and behaviour during two social interaction tasks among teens assigned to sleep extension (SE) or typical sleep (TS) conditions. Twenty healthy adolescents completed a baseline assessment (7 nights…

Background: Suicide is a leading cause of death for adolescents, and school connectedness is a potential, modifiable protective factor for suicide. We sought to examine if school connectedness protected against suicide among high school students and if potential moderators affected the relationship between school connectedness and suicide.…

Denise Pope, Sarah Miles, Megan Pacheco, and Caitlin Ciannella explore three major concerns affecting high school students' well-being: stress, sleep deprivation, and lack of belonging. Drawing from research by Challenge Success involving over 270,000 high school students across more than 10 years, they highlight how academic pressure, family…

The recent increase in mental health problems and private tutoring (also called shadow education) among adolescents has been widely documented. This study relates involvement in private tutoring to depressive symptoms using data from a nationally representative sample of middle school students (grades 7-9, M[subscript age] = 13.90, N = 25,862) in…

Introduction: Existing research indicates high prevalence of emotional problems among adolescents with excessive academic burden, yet the underlying reasons are not well understood. This study aimed to explore loneliness, physical activity, and sleep as potential mediating pathways between academic burden and emotional problems in adolescents.…

Background: Inadequate sleep has been shown to have detrimental effects on academic performance, physical, mental, and emotional health among adolescents. Factors that influence sleep have been identified. However, most literature is currently limited to urban settings. This study sought to identify factors that influence sleep habits among high…

Background: The benefits of delaying school start times for secondary students are well-established. However, no previous study has considered how changing school start times impacts sleep and daytime functioning for K-12 teachers. Methods: Teachers in a large suburban school district completed 3 annual surveys (pre-change n = 1687, post-change n…

With the prolongation of non-ordinary situations such as school closures due to the coronavirus disease 2019 (COVID-19) pandemic, high school students have experienced irregular sleep-wake cycles and elevated academic stress resulting from reduced academic achievement and widened gaps in academic performance. This cross-sectional study aimed to…

Insufficient sleep and sleepiness are common in adolescence and can negatively impact school performance. The current study examined sleep duration and sleepiness in academic performance and cognitive processes in early adolescence. Middle school students (N = 288; M[subscript age] = 12.01; 54% female; 48% Black, 37% White, 10% Hispanic) wore…