Whether it is your voice, music from a concert or undesired noise, sound results from vibrations of molecules in the air. But sound fades quickly with distance. To transmit sound over large distances, mobile phones convert the sound vibrations into electromagnetic vibrations, which is the radiation you are talking about. Light, X-rays, and radio waves are all electromagnetic vibrations. Such vibrations can propagate over larger distances than sound, which is why they are essential: if you want your phone to be mobile, it has to emit such a radiation. Fixed phones being the alternative transmit conversations through their wires. The effects of electromagnetic radiation from mobile phones on human health are unclear, but there might be a risk. Therefore, the World Health Organisation recommends using hands-free devices, such as bluetooth, which keep mobile phones away from the head and body.
Cell phones emit low levels of non-ionizing radiation when in use. The type of radiation emitted by cell phones is also referred to as radio frequency (RF) energy. As stated by the National Cancer Institute, “there is currently no consistent evidence that non-ionizing radiation increases cancer risk in humans. The only consistently recognized biological effect of radiofrequency radiation in humans is heating.”
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