It worries me when I look at the total number of hours I've spent on this forum. I very seldom walk away from the computer, either. I always log off, so the reported hours are probably quite accurate. Should I be concerned? Please see:
http://news.bbc.co.uk/1/hi/health/8493149.stmThere may be a link between relatively heavy Internet use and depression.
The authors found that a small number of users had developed a compulsive internet habit, replacing real life social interaction with online chat rooms and social networking sites.