Whoa that's heavy! And you thought that spending ten hours a day online was a harmless pursuit? Hmm, well perhaps not. An American Journal of Psychiatry editorial suggests that Internet addiction, defined as "excessive gaming, sexual pre-occupations and e-mail/text messaging", is a common compulsive-impulsive disorder which should be added to the Diagnostic and Statistical Manual of Mental Disorders publication, psychology's official dictionary of mental illnesses...