Five-year-olds that spend more than two hours a day in front of screens have 5.9 times and 7.7 times higher likelihoods of developing significant attention problems and attention-deficit/hyperactivity disorder symptoms, respectively, compared with those who spent 30 minutes or less with digital devices, Canadian researchers recently reported. The findings were based on data involving 2,427 youths in the Canadian Healthy Infant Longitudinal Development study. Parents of young children should keep this in mind as they monitor screen time.