What biological effects can be caused by radiofrequency EME?
A biological effect occurs when a change can be measured in a biological system after the introduction of some type of stimuli. However, a biological effect does not necessarily mean there is a biological hazard. A biological effect only becomes a safety hazard when it causes impairment to the health of the individual or of his or her offspring. It has been known for many years that exposure to sufficiently high levels of EME can heat biological tissue and potentially cause tissue damage. This is because the human body is unable to cope with the excessive heat generated during exposure to very high levels of radiofrequency EME. Studies have shown that environmental levels of radiofrequency EME routinely encountered by the public are far below the levels needed to produce significant heating and increased body temperature. At relatively low levels of exposure to EME, that is, field intensities lower than those that would produce measurable heating, the evidence for production of harmful