"Emerging evidence suggests that mobile device and social media uses have an unfavorable relationship with attention, memory, impulse control, and academic performance"

Cut back on screen time in 2019

Children between the ages of 8 and 11 who spend more than two hours a day looking at screens were associated with lower cognitive function than those who engaged in less screen time, according to researchers who published a study in The Lancet in September.

https://www.cnn.com/2018/12/27/opinions/cut-back-on-screen-time-in-2019-alaimo/index.html