Hello, Pphius and Welcome to Wikipedia! Thank you for your contributions to this free encyclopedia. If you decide that you need help, check out Getting Help below, ask me on my talk page, or place {{helpme}} on your talk page and ask your question there. Please remember to sign your name on talk pages by using four tildes (~~~~) or by clicking ![](//upload.wikimedia.org/wikipedia/en/7/79/Insert-signature.png) if shown; this will automatically produce your username and the date. Also, please do your best to always fill in the edit summary field with your edits. Below are some useful links to facilitate your involvement. Happy editing! Pgallert ( talk) 07:14, 15 September 2011 (UTC)Reply
|
Getting started
|
|
Getting help
|
|
Policies and guidelines
|
|
|
The community
|
|
Writing articles
|
|
Miscellaneous
|
|
|
|
Hi Pphius, the Wikipedia:School and university projects/Polytechnic of Namibia project page is not the place to write Wikipedia content. Please do that in your user space, see help here. I copied the text you submitted below, but please consider that there already is extensive coverage on cell phones and their perceived health danger on Wikipedia. Cheers,Pgallert (talk) 07:14, 15 September 2011 (UTC)Reply
Cell phones have become indispensable devices in our daily
life. These phones operate between 400 MHz and 2000 MHz
frequency bands and emit radiofrequency electromagnetic
waves (EMW). Reports of potential adverse effects of radiofrequency
EMWon brain, heart, endocrine system, and DNA
of humans and animals are widely reported in the literature.
Electromagnetic waves alter brain electroencephalographic
activity and cause disturbance in sleep (1); cause difficulty
in concentration, fatigue, and headache (2); and increase reaction
time in a time-dependent manner (3). They increase
the resting blood pressure (4) and reduce the production of
melatonin (5).
REFERENCES
1. Huber R, Graf T, Cote KA, Wittmann L, Gallmann E, Matter D, et al.
Exposure to pulsed high-frequency electromagnetic field during waking
affects human sleep EEG. Neuroreport 2000;11:3321–5.
2. Oftedal G, Wilen J, Sandstrom M, Mild KH. Symptoms experienced
in connection with mobile phone use. Occup Med (Lond) 2000;50:
237–45.