A longitudinal study followed children from age 1 to 8 years and found that higher screen viewing time—particularly during infancy and around school-entry age—was consistently associated with poorer academic performance at age 9 and weaker working memory at age 10.5.

A longitudinal study followed children from age 1 to 8 years and found that higher screen viewing time—particularly during infancy and around school-entry age—was consistently associated with poorer academic performance at age 9 and weaker working memory at age 10.5.