A study published in The Lancet Childhood and Adolescent Health Journal with 4,500 participants looked at the effects of screen use on cognition and has come up with some interesting results that suggest limiting screen time to under two hours a day is a good idea.

BBC News reports on the study here: https://www.bbc.com/news/health-45651725?utm_source=MIT+Technology+Review&utm_campaign=0d35c756b9-EMAIL_CAMPAIGN_2018_09_27_09_57&utm_medium=email&utm_term=0_997ed6f472-0d35c756b9-153805949