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Impulsive behaviour linked to sleep and screen time, CHEO study finds

August 14, 2019

August 14, 2019 -- OTTAWA -- A paper published today in Pediatrics suggests that children and youth who do not sleep enough and use screens more than recommended are more likely to act impulsively and make poorer decisions. The findings come from the globally recognized Healthy Active Living and Obesity Research Group (HALO) at the CHEO Research Institute in Ottawa.

"Impulsive behaviour is associated with numerous mental health and addiction problems, including eating disorders, behavioural addictions and substance abuse," said Dr. Michelle Guerrero, lead author and postdoctoral fellow at the CHEO Research Institute and the University of Ottawa. "This study shows the importance of especially paying attention to sleep and recreational screen time, and reinforces the Canadian 24-Hour Movement Guidelines for Children and Youth. When kids follow these recommendations, they are more likely to make better decisions and act less rashly than those who do not meet the guidelines."

The Canadian 24-Hour Movement Guidelines for Children and Youth recommend:
  • 9-11 hours of sleep a night
  • no more than 2 hours of recreational screen time a day
The paper, "24-Hour Movement Behaviours and Impulsivity," analysed data for 4,524 children from the first set of data of a large longitudinal population study called the Adolescent Brain Cognitive Development (ABCD) Study, which will follow participants for 10 years. In addition to sleep and screen time, the ABCD Study also captures data related to physical activity. Physical activity is a third pillar of the Canadian 24-Hour Movement Guidelines, which recommend at least 60 minutes of moderate to vigorous physical activity daily.

The ABCD Study allowed Guerrero and her team to look at the three pillars of the movement guidelines against eight measures of impulsivity, such as one's tendency to seek out thrilling experiences, to set desired goals, to respond sensitively to rewarding or unpleasant stimuli, and to act rashly in negative and positive moods. The study results suggest that meeting all three pillars of the movement guidelines was associated with more favorable outcomes on five of the eight dimensions.

Guerrero and her team say that studies using feedback devices to measure the movement behaviours in future research will help further our understanding of how physical activity, screen time, and sleep relate to children's impulsivity.
-end-
Title: "24-Hour Movement Behaviors and Impulsivity"

Authors: Michelle D. Guerrero, Joel D. Barnes, Jeremy J. Walsh, Jean-Phillipe Chaput, Mark Tremblay, Gary Goldfield

Media contact

Paddy Moore, CHEO
o. 613-737-7600, ext. 3536 | c. 613-769-5553 | pmoore@cheo.on.ca

About CHEO

Dedicated to the best life for every child and youth, CHEO is a global leader in pediatric health care and research. Based in Ottawa, CHEO includes a hospital, children's treatment centre, school and research institute, with satellite services located throughout Eastern Ontario. CHEO provides excellence in complex pediatric care, research and education. We are committed to partnering with families and the community to provide exceptional care -- where, when and how it's needed. CHEO is a founding member of Kids Health Alliance, a network of partners working to create a high quality, standardized and coordinated approach to pediatric health care that is centred around children, youth and their families. Every year, CHEO helps more than 500,000 children and youth from Eastern Ontario, western Quebec, Nunavut and Northern Ontario.

University of Ottawa

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