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The human body is exposed to various types of radiation which may be harmful or not to our body. In physics radiation is defined as an energy that is transmitted in the form of rays, waves or particles. We call the radiation emitted by cellphones, electromagnetic radiation. Studies show that while receiving or making calls our body is exposed to radiation.
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Many of us have been warned at one time or another that we should never leave a mobile phone is compartment especially when the vehicle is expose to direct sunlight for a long period of time. Another one from user guide, do not switch the device on when wireless phone use is prohibited or when it may cause danger. Furthermore, switching the device off in aircraft, fuel, chemicals, blasting area and near medical equipment is a must.
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