- Screen time for children younger than 2 years is not recommended.
- Higher levels of screen time is associated with a variety of health harms for children, especially for adiposity, unhealthy diet, depressive symptoms and quality of life.
- The evidence for a threshold on screen time is weak.
REFERENCES:
RECOMMENDATIONS
Minimize screen time:
- Screen time for children younger than 2 years is not recommended.
- For children 2 to 5 years, limit routine or regular screen time to less than 1 hour per day.
- Ensure that sedentary screen time is not a routine part of child care for children younger than 5 years.
- Maintain daily ‘screen-free’ times, especially for family meals and book-sharing.
- Avoid screens for at least 1 hour before bedtime, given the potential for melatonin-suppressing effects.
Canadian Paediatric Society, Digital Health Task Force, Ottawa, Ontario . Screen time and young children: Promoting health and development in a digital world [published correction appears in Paediatr Child Health. 2018 Feb;23 (1):83]. Paediatr Child Health. 2017;22(8):461-477. doi:10.1093/pch/pxx123: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5823000/
There is considerable evidence that higher levels of screentime is associated with a variety of health harms for CYP [(children and young people)], with evidence strongest for adiposity, unhealthy diet, depressive symptoms and quality of life. Evidence for impact on other health outcomes is largely weak or absent. We found no consistent evidence of health benefits from screentime. While evidence for a threshold to guide policy on CYP screentime exposure was very limited, there is weak evidence that small amounts of daily screen use is not harmful and may have some benefits.
These data broadly support policy action to limit screen use by CYP because of evidence of health harms across a broad range of domains of physical and mental health. We did not identify a threshold for safe screen use, although we note there was weak evidence for a threshold of 2 hours daily screentime for the associations with depressive symptoms and with HRQOL [(health-related quality of life)]. We did not identify evidence supporting differential thresholds for younger children or adolescents.
Stiglic N, Viner RM. Effects of screentime on the health and well-being of children and adolescents: a systematic review of reviews. BMJ Open. 2019;9(1):e023191. Published 2019 Jan 3. doi:10.1136/bmjopen-2018-023191: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6326346/
Pre-school children spend an average of two-hours daily using screens. We examined associations between screen-time on pre-school behavior using data from the Canadian Healthy Infant Longitudinal Development (CHILD) study. [...] Compared to children with less than 30-minutes/day screen-time, those watching more than two-hours/day (13·7%) [...] had a 7·7-fold increased risk of meeting criteria for ADHD (95%CI: 1·6, 38·1, p = 0·01).
Conclusion
Increased screen-time in pre-school is associated with worse inattention problems.
Tamana SK, Ezeugwu V, Chikuma J, et al. Screen-time is associated with inattention problems in preschoolers: Results from the CHILD birth cohort study. PLoS One. 2019;14(4):e0213995. Published 2019 Apr 17. doi:10.1371/journal.pone.0213995: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6469768/
SEE ALSO:
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Is TV harmful to my infant's development?
At what age should a child be introduced to the Television?