This claim is true; the article cited the source directly, and when following that claim, I found exactly what they said. New York Presbyterian states that over 4 hours of screen time is detrimental to a kid's cognitive abilities. When following that statement, I found that Jama Network claimed the same thing days before NYP published their claim. Jama Network cites every single reference they used to create this article made by doctors and physiologists. Both articles have the same data along with many other articles not cited.