1 School of Sport, Exercise & Health Sciences, Loughborough University, Loughborough, Leicestershire, United Kingdom.
2 Institute of Sport Exercise & Health, Division of Surgery & Interventional Science, Faculty of Medical Sciences, University College London, London, United Kingdom.
This analysis of the UK Millennium Cohort Study examines the associations between sleep, physical activity, and screen time in adolescents aged 14 years in the United Kingdom.