Home » BBC News - Technology » technology news » The trouble knowing how much screen time is 'OK' The trouble knowing how much screen time is 'OK' Unknown 2:39 AM BBC News - Technology technology news Concerns about time spent online are widespread, but knowing how much is 'OK' is difficult. from BBC News - Technology http://ift.tt/2BIA1aK Share: Facebook Twitter Google+ StumbleUpon Digg Delicious LinkedIn Reddit Technorati