The rapid development in science and technology, exposed living organism with extend rang of electromagnetic fields (EMFs). Both urban and city residents have exposure with EMFs. The negative effects of EMFs on human health are disadvantages of the industrial world. Obviously, these fields can cause several diseases by performing changed in proteins, genetic factors, evaluation and proliferation. Regarding some research, cancers can create because of these changes. Presumably, the low-power electromagnetic fields are not Geno toxic directly, but it is possible they perform some changes in some steps of cell cycle, so, effect on structure of molecules, indirectly. And create Geno toxic and cytotoxic harms. Scientists believe electromagnetic fields cannot harm genes lonely, but, they increase the Geno toxic operation of other environmental chemical and physical factors such as Carcinogens. The outcomes of Research illustrate the magnetic field can cause Brain cancer. Despite some studies which are not believe that EMFs can cause breast cancer, some others argues they can. This book evaluated the role of exposure to high voltage power lines on the incidence of diseases in human.

Maral Mazloumi Tabrizi graduated in master of Toxicology. She is a research assistant of Professor Dr. Azim Akbarazadeh at Institute Pasteur of Iran. Maral in cooperation with Seyed Ahmad Hosseini has published several articles and books under the honorable guidance of Professor Dr. Azim Akbarzadeh.