Electromagnetic fields (EMFs) that are in our environment around us originate from both natural and manmade sources. While the natural (geomagnetic field of the Earth called the Earth's magnetosphere) are useful (protects all living creatures before the deadly cosmic radiation), the man-made, called electrosmog can harm human health.
For the reason, the World Health Organization issued measures in relation to the risk of exposure to low frequency EMF (in 2007), and VF EMF (in 2011 - here especially given the dramatic worldwide increase in the number of mobile phone users as one of the major sources of HF EMF). In this measure is recommended, in addition to stated limit doses in tissues absorbed SAR (Specific Absorption Rate), on the initiative of the International Agency for Research on Cancer (IARC), also the inclusion of RF electromagnetic radiation into Group 2B, with possibly carcinogenic effects on humans.
This happened despite the lack of convincing evidence of carcinogenicity of radiation, because this possibility can not be excluded at present. It is because EMFs in interaction with biological systems may cause oxidative stress which is typical by creation of free oxygen radicals.
These radicals, in addition to their physiological functions, play a significant role in pathogenesis of many diseases such as cancer, neurodegeneration and others. This article pays attention mainly the last published results in this research area.