The purpose of this paper was to analyze the negative effects of wireless communication systems on human health. Wireless communications were considered, by all measures, the fastest growing segment of the communications industry. Today, wireless communication drastically affects the way people live, work, play games and communicate with people and the world. There are billions of mobile phone subscribers worldwide, and a wide range of devices other than phones use mobile technology for their connectivity. People are exposed to various types of natural and artificial non-ionizing radiation, which can have high frequencies coming from mobile phones, radars, the application of induction heaters in industry, and the like, and low frequencies from transmission lines. Electromagnetic fields generate a wide variety of radiation sources, such as electrical equipment, personal communication devices, office equipment and consumer products. The use of wireless communications affects the electromagnetic environment, and as a consequence there is an implicit need to ensure the safety of the professional and general public, as well as the correct working conditions of electrical and electronic equipment and other devices used. However, it is important for individuals to take steps to reduce their exposure to electromagnetic fields and for organizations to establish guidelines and safety standards for the use of these technologies to protect the health and well-being of individuals.