Valdez, R. (2018, December 10). Heavy Screen Time May Cause Premature Changes In Brain Structure Among Kids: Study. Retrieved February 13, 2019

Children ages 9 and 10 who spent at least seven hours on screens per day had thinning of the part of the brain that controls sensory processing, and those who had more than two hours of daily screen time had lower language and thinking test scores, according to an ongoing study from the National Institutes of Health. The study will follow over 11,000 children for 10 years to see how prolonged screen time affects the brain.