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Computer addiction is a mental illness which causes the excessive use of computers to the extent that it interferes with daily life. Excessive use may explain problems in social interaction, mood, personality, work ethic, relationships, thought processes, or sleep deprivation. The Diagnostic and Statistical Manual of Mental Disorders does not include a diagnosis for such a disease.
The term ′computer addiction′ originated long before the Internet.
Some people develop bad habits in their computer use that cause them significant problems in their lives. The types of behavior and negative consequences are similar to those of known addictive disorders.
Excessive computer use may result in, or occur with:
- Lack of social interaction.
- Using the computer for pleasure, gratification, or relief from stress.
- Feeling irritable and out of control or depressed when not using it.
- Spending increasing amounts of time and money on hardware, software, magazines, and computer-related activities.
- Neglecting work, school, or family obligations.
- Lying about the amount of time spent on computer activities.
- Risking loss of career goals, educational objectives, and personal relationships.
- Failing at repeated efforts to control computer use.
- Never getting off the computer.
A cause for many of the above-mentioned effects may be that computer games do not stimulate the release of neurotransmitters responsible for feelings of satisfaction and relaxation, such as oxytocin and endorphin, in the same way that real world activities do. 
Origin of the term 
British e-Learning academic Nicholas Rushby suggested in his 1979 book, An Introduction to Educational Computing, that people can be addicted to computers and suffer withdrawal symptoms. The term was also used by M. Shotton in 1989 in her book Computer Addiction.
Press reports have noted that some Finnish Defence Forces conscripts were not mature enough to meet the demands of military life, and were required to interrupt or postpone military service for a year. One reported source of the lack of needed social skills is overuse of computer games or the Internet. Forbes termed this overuse "Web fixations", and stated that they were responsible for 12 such interruptions or deferrals over the 5 years from 2000-2005. 
See also 
- Information addiction
- Internet addiction disorder
- Video game addiction
- Computer rage
- Facebook addiction
- Poquérusse, Jessie. "The Neuroscience of Sharing". Retrieved 16 August 2012.
- "WHO study shows Finnish teenage boys as heavy computer users". Helsingin Sanomat. Retrieved 2007-07-17.
- Lea Goldman (2005-09-05). "This Is Your Brain on Clicks". Forbes. Retrieved 2007-07-17.
- Dawn Heron. "Time To Log Off: New Diagnostic Criteria For Problematic Internet Use", University of Florida, Gainesville, published in Current Psychology, April 2003  (Identifies incessant posting in chat rooms as a form of emotional disorder).
- Orzack, Maressa H. Dr. (1998). "Computer Addiction: What Is It?" Psychiatric Times XV(8).
- Shotton, MA (1989), Computer Addiction? A study of computer dependency. New York: Taylor & Francis.
- Cromie, William J. Computer Addiction Is Coming On-line. HPAC - Harvard Public Affairs & Communications. Web. 20 Oct. 2010.  (Explains symptoms and other various attributes of the new disease).
- UTD Counseling Center: Self-Help:Computer Addiction. Home Page - The University of Texas at Dallas. Web. 20 Oct. 2010. .