2021 - Circadian Typology and Implications for Adolescent Sleep Health

2021 - Circadian Typology and Implications for Adolescent Sleep Health

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ABSTRACT

Study objectives: To investigate circadian typology in a large, representative sample of Norwegian adolescents, and its implications for sleep health.
Methods: The sample included 3920 1st year high school students aged 16e17 years. Respondents completed a web-based survey, including the short version of the Horne-Ostberg Morningness-Eveningness Questionnaire (rMEQ), the Munich Chronotype Questionnaire (MCTQ) and items on sleep- related behaviors (eg electronic media usage in bed, consumption of caffeinated beverages), sleep beliefs and daytime sleepiness. Data were analyzed using one-way ANOVAs and Chi-squared tests. Results: In all, 7.8% were categorized as morning, 52.3% as intermediate and 39.9% as evening types, respectively. Evening types had later sleep timing, longer sleep latency, more social jetlag and shorter school day sleep duration than morning types, with intermediate types displaying a sleep pattern between these two extremes. None of the circadian types met the minimum recommended amount of sleep on school nights (ie 8+ hours), and only morning types had a mean sleep duration of 7+ hours (7:19 h, nearly 1 h more than evening types who slept 6:20 h, p < 0.001). Evening types reported more use of electronic media in bed, more consumption of caffeinated beverages and more daytime sleepiness than the other circadian types. They were also less satisfied with their school day sleep duration and perceived it more difficult to change their sleep pattern.

Conclusions: Results from this study suggest that eveningness represents a sleep health challenge for older adolescents.

Caffeine and Sleep in Adolescents: A Systematic Review

Caffeine and Sleep in Adolescents: A Systematic Review

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2018 - Brief school-based sleep interventions to assist adolescents' sleep

2018 - Brief school-based sleep interventions to assist adolescents' sleep

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2021 - Delayed sleep wake phase disorder in young adults

2021 - Delayed sleep wake phase disorder in young adults

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2013 - Delayed Sleep Phase Disorder in Youth

2013 - Delayed Sleep Phase Disorder in Youth

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2018 - Readiness to change and commitment as predictors of therapy

2018 - Readiness to change and commitment as predictors of therapy

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