"At the very latest since the findings of Dr. Erwin Schliephake in 1932, do we know that radio-frequency radiation of longer exposure duration can cause illness in humans, especially affecting the central nervous system and its control functions. And as early as 1971, observations of pathogenic effects of electromagnetic radiation have been included in the U.S. government report with the title Program for Control of Electromagnetic Pollution of the Environment, which urgently warns of the associated risks. The authors of the report are convinced that "in the decades ahead, man may enter an era of energy pollution of the environment comparable to the chemical pollution of today." They predict, "The consequences of undervaluing or misjudging the biological effects of long-term [author's emphasis], low-level exposure could become a critical problem for public health." Even though research independent of industry has constantly produced new evidence that proves the above prediction right, the public is regularly told how safe wireless radiation is.
In 1996, the author and his associate Balzer had been commissioned by the German Federal Agency of Telecommunications (today the Federal Network Agency) to carry out a review of the Russian scientific literature between 1960 and 1997 [Hecht, Balzer 1997]. Under the title Biologische Wirkungen elektromagnetischer Felder im Frequenzbereich 0 bis 3 GHz auf den Menschen [Biological Effects of Electromagnetic Fields on Humans in the Frequency Range of 0 to 3 GHz], they submitted their review in 1997. Those who had commissioned the review, however, were eager to suppress the results of this 120-page research report. The report revealed which central role the time factor plays for the biological effects of electromagnetic fields: In healthy persons, symptoms, especially those that affect the functions of the central nervous system (brain), will appear at the earliest after three to five years of EMF exposure (2–8 h/day). Only after five years of EMF exposure, and even more pronounced after ten years of EMF exposure, did the number and severity of the diseases increase." Source: Prof. Dr. med. habil. Karl Hecht - https://www.emfanalysis.com/wp-content/uploads/2017/01/German-Report-on-878-Russian-EMF-Health-Studies.pdf