Electromagnetic radiation can be classified into two types: ionizing radiation and non-ionizing radiation, based on its capability of ionizing atoms and breaking chemical bonds.
Rays with ultraviolet and higher frequencies, such as X-rays or gamma rays are ionizing, and they pose their own special hazards.
Non-ionizing radiation, discussed here, is most often associated with electrical and biological hazards. Since cell phones transmit information via the open air space, during such a transmissionElectromagnetic fields (EMF) are generated.
It has been scientifically proven that when you use a cell phone, your head inevitably absorbs some of that radiation.
Often cell phones switch over to the mode of operation where they continuously search for the best available signal from the towers within a particular area.
This automatic search for best signal also occurs pretty much every time you move (and your cell phone with you) from one point to another.
On one hand – this is the manner in which cell phones fluctuate the power levels in order to provide you with the best and strongest radio frequency necessary for your calls.
On the other hand, this intensity in radiation levels activity is most harmful to your health in the long run -much more than cordless phones of similar power level.