Research Review on the Biological Effect of Cell Phone Radiation on Human
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Ashraf A. Aly1, Safaai Bin Deris2, Nazar Zaki3 Faculty of Computer Science and Information Systems, Universiti Teknologi Malaysia 3 College of Information Technology, UAE University, UAE Ashraf.ahmed@uaeu.ac.ae, safaai@utm.my, nzaki@uaeu.ac.ae increased incidence rate of traffic accidents due to the use of mobile phone while driving. The risk of exposure to electromagnetic field was first highlighted and publicized in the late 1970s by Colorado study [2] that linked magnetic field exposure from power lines to the possible development of child leukemia. The amount of RF generated by cell phone is usually depends on the number of base stations around the area, the cell phone network traffic, and on how far the cell phone from base stations. The amount of the power which sent from a base station could vary from cell phone to another one even within the same area, depends on the interfering from obstacles such as buildings and trees [3]. Although, cell phones are designed to operate at power levels below a threshold for known thermal effects, radio frequency radiation could produce other kinds of effects, called biological effects. In Figure 1, we show a calculation of specific absorbed radiation (SAR) distribution in an anatomical model of human head positioned next to a 125 mW dipole antenna. The resulted Peak SAR is 9.5 W/kg over 1 mg which is a clear indication of the effect.

Abstract
The growth in the use of cellular phone has raised the concerns about the possible interaction between the electromagnetic fields (EMF) radiation and the biological effects on human tissues, particularly the brain and the human immune system. These concerns have induced a large volume of research studies. However, most of the previous review studies are concentrated on negative effects and no