Electromagnetic fields, referred to commonly as EMF, of all frequencies represent an influence in the environment. The natural world, including our bodies, produce low intensity EMF which are used to transfer information and control chemical reactions. It's the EMF produced by electrical systems and wireless communications which causes issues with people, plants and animals today. These non-native EMF are at a higher intensity level than our natural EMF, which distorts the flow of our natural processes. According to the World Health Organization, all populations are now exposed to varying degrees of EMF, and the levels will continue to increase as technology advances. The electromagnetic spectrum shows the range of frequencies, associated technologies and the intensity of the frequency. While radio, radar and wireless communicatinos are non-ionizing (meaning they don't heat up the cells), studies on rats and mice from 2018 in both the US and Italy showed they do cause cancer.