Effects of Electromagnetic Radiations from Cell Phones: A Critical Study

The increasing use of mobile phones has resulted in larger human exposure to radio frequency electromagnetic fields. Although the electromagnetic fields from mobile phones are weak, the high number of exposed persons, together with some stimulating but inconclusive scientific results, has raised concerns about possible health hazards. Most of the biological studies showed that radio frequency modulated electromagnetic fields (like Global System for Mobile Communications (GSM 900 MHz and 1800 MHz)) induced a stress response in the cells, which can potentially change the blood-brain barrier. The potential health effects of human-made electromagnetic fields (EMFs) have been a topic of scientific interest since the late 1800s, particularly in the last twenty years. Electromagnetic fields are natural phenomena that have always been present on earth. However, during the twentieth century, environmental exposure to human-made EMFs increased steadily, predominantly due to increased electricity and wireless technology use. Nearly all people are exposed to a complex mix of different types of weak electric and magnetic fields, both at home and at work. Electrical currents exist naturally in the human body and are an essential part of normal body function. Nerves relay signals by transmitting electric impulses, and most biochemical reactions, from those associated with digestion to those involved in brain activity, proceed by means of rearranging charged particles. This present paper shows the possible effects of electromagnetic radiations emitted from cellular phones on human and living organisms. Therefore, a complete study has been carried out to discuss the serious worries of using mobile phones. The paper has been divided into four parts: part I gives the basis introduction and related studies of cell phones, part II presents the technology behind the cellular networks, part III discusses the basic hazards of using mobile phones, and danger of cellular phone and their prolonged effects, and part IV gives the conclusions and precautions, which should be taken into account while using the cell phones to avoid any serious health related risks.