=I spend on my computer a few days weeks 2 hours a day, bad weekends in a 6 hours straight.

=I do not usually change many text messages by cell phone with my friends usually talk to them personally.

=I do not think that is a long time, but it's always good to practice other activities

=limit may not be the best idea, but guide their children the best way to use the computer more useful things.

=may cause back problems by getting a lot of time sitting incorrect and possible headaches.