A new study on children across the U.S., published in The Lancet Child & Adolescent Health, finds that when they spend more than two hours on screens every day, they tend to perform more poorly on tests of cognition. Meeting the 24-hour movement recommendations was associated with superior global cognition. These findings highlight the importance of limiting recreational screen time and encouraging healthy sleep to improve cognition in children.
Walsh, J. J., Barners, J. D., Cameron, J. D., Goldfield, G. S., Chaput, J., Gunnell, K. E., Ledoux, A., Zemek, R. L., & Tremblay, M. S. (2018). Associations between 24 hour movement behaviours and global cognition in US children: A cross-sectional observational study. The Lancet Child & Adolescent Health, 2(11), 783-791. http://dx.doi.org/10.1016/S2352-4642(18)30278-5