The following is excerpted from an online article posted by StudyFinds
Children with more screen time showed cortical thinning in brain regions involved in memory, planning, and impulse control.
A study of nearly 10,000 American kids offers some answers. Researchers tracking children from ages 9-10 through 11-12 found that heavier screen time was associated with measurable differences in brain structure. More specifically, reduced thickness in areas controlling attention, memory, and impulse control.
MRI scans revealed the differences weren’t random. They showed up in the same brain regions that function differently in children with ADHD. Screen time also correlated with smaller volume in the brain’s reward center and less gray matter overall, and these structural differences aligned with increases in ADHD symptoms over the two-year period.
Source: StudyFinds
https://studyfinds.org/kids-brains-after-thousands-of-hours-staring-at-screens/