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Laura Linn Knight, a parenting coach and former first-grade teacher, said children who spend 9 hours daily on smart devices likely have parents who are also “addicted to their phones.”
JAMA study finds 15% of children spend 9 hours a day on smart devices →
“In my work as a parenting educator and in my experience as a mother, I have seen more and more children using devices to help regulate their emotions and calm down,” Ms. Knight, a former elementary school teacher, said in an email.
Smart devices stunt toddlers' emotional development, study finds →
