2.4+Psychological+and+physical+considerations

= = = = = = = = = = =**__ Internet Addiction __**=


 * Internet addiction disorder** (**IAD**), or, more broadly, //Internet overuse//, //problematic computer use// or //pathological computer use//, is excessive computer use that interferes with daily life. These terms avoid the distracting and divisive term addiction and are not limited to any single cause.

Online activities which, if done in person, would normally be considered troublesome, such as compulsive gambling or shopping, are sometimes called //net compulsions//. [|[4]] Others, such as reading or playing computer games, are troubling only to the extent that these activities interfere with normal life. Supporters of disorder classification often divide IAD into subtypes by activity, such as excessive, overwhelming, or inappropriate pornography use, gaming, online social networking, blogging, email, or Internet shopping.

Corrective strategies include content-control software, counseling, and cognitive behavioural therapy. One of the major reasons that the Internet is so addicting is the lack of limits and the absence of accountability.

http://en.wikipedia.org/wiki/Internet_addiction_disorder

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Here is a site that can help you find out whether you are addicted to the Internet or not: http://www.netaddiction.com/index.php?option=com_bfquiz&view=onepage&catid=46&Itemid=106

Article: http://www.independent.co.uk/news/science/addicted-scientists-show-how-internet-dependency-alters-the-human-brain-6288344.html

=**__ Repetitive Strain Injury __**=

**Repetitive strain injury** (**RSI**) (**repetitive motion disorder** (**RMD**)) is an injury of the muscles and nervous system that may be caused by repetitive tasks, forceful exertions, vibrations, mechanical compression (pressing against hard surfaces), or sustained or awkward positions.

The following list lists several risk factors. You may be at risk for developing an RSI if you:
 * Have poor posture
 * Have poor technique
 * Use a computer more than two to four hours a day
 * Have a job that requires constant computer use, especially heavy input
 * Don't take frequent breaks
 * Are loose-jointed
 * Don't exercise regularly
 * Work in a high-pressure environment
 * Have arthritis, diabetes, or another serious medical condition
 * Keep your fingernails long
 * Have an unhealthy, stressful, or sedentary lifestyle
 * Weigh more than you should
 * Don't sleep well
 * Are afraid to ask for better accommodations
 * Won't accept that you are at risk when you really are.

What you should do in order to prevent any problems:



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= **__Ergonomics__** =

The photo above is an example of sitting ergonomics because it shows the perfect position to sit in, for a persons body to feel comfortable.
 * Ergonomics** is the study of designing equipment and devices that fit the human body, its movements, and its cognitive abilities.

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