According to a new study by the Kaiser Family Foundation, children ages 8-18 spend about nine and a half hours "glued" to screens, including TV, computers, MP3 players and phones.
"While most of the young people in the study got good grades, 47 percent of the heaviest media users -- those who consumed at least 16 hours a day -- had mostly Cs or lower, compared with 23 percent of those who typically consumed media three hours a day or less," says the study.










