Children who use smartphones, tablets, and video games for more than seven hours a day are more likely to experience premature thinning of the cortex, the outermost layer of the brain that processes thought and action, a 2018 study found. https://t.co/OJe6ZTBVkx

— EdWeek Teacher (@EdWeekTeacher) August 1, 2019

http://blogs.edweek.org/edweek/DigitalEducation/2018/12/early_results_of_study_show_sc.html

The Adolescent Brain Cognitive Development study tested 4,500 9-10-year-olds in its first released dataset. The ABCD study is the largest long-term study of brain development in U.S.

Early data from the study, analyzed by another group of researchers from the CHEO Research Institute’s Healthy Active Living and Obesity also showed that kids who spend less than two hours a day on screens, participated in 60 minutes of moderate-to-vigorous-intensity physical activity, and received nine to 11 hours of uninterrupted sleep had higher cognitive abilities.Cognition was measured by language abilities, episodic memory, executive function, attention, working memory, and processing speed.