This research simply says that the children of the age group studied are not hurt by screen time in one particular aspect -- mental health. To draw the conclus

This research simply says that the children of the age group studied are not hurt by screen time in one particular aspect -- mental health. To draw the conclusion that we should stop worrying about screen time because a single study failed to find an effect in this specific case is a bit of a leap. I think there's a massive difference between screen time between the ages of 10 and 14, and screen time under the age of 5, when a child's brain is developing very rapidly. And what I worry about most is consequences like ADHD and decreased attention span.