National Center for Scientific Research "Demokritos", Athens, Greece; Choremeion Research Laboratory, Medical School, National and Kapodistrian University of Athens, Greece; Radiation and Environmental Biophysics Research Laboratory, Athens, Greece.
Choremeion Research Laboratory, Medical School, National and Kapodistrian University of Athens, Greece.
Sci Total Environ. 2019 Jun 1;667:255-262. doi: 10.1016/j.scitotenv.2019.02.344. Epub 2019 Feb 23.
Human exposure to man-made Electromagnetic Fields (EMFs) has increased to unprecedented levels, accompanied by increase in various health problems. A connection has been indicated by an increasing number of studies. Symptoms characterized as Electro-hyper-sensitivity (EHS) are frequently reported especially in urban environments. Lately, people are advised by private companies and individuals to protect themselves from man-made EMFs by metal shielding through various products, for which there are reasonable concerns about their protective efficacy and safety. Indeed, any metal shielding practice, even when correctly applied, attenuates not only man-made totally polarized EMFs accused for the health problems, but also the natural non-polarized EMFs responsible for the biological rhythmicity and well-being of all animals. Strong evidence on this was provided by pioneering experiments in the 1960's and 1970's, with volunteers staying in a shielded underground apartment. We analyze the physical principles of EMF-shielding, the importance of natural atmospheric EMFs, and examine available shielding methods and suggested products, relying on science-based evidence. We suggest that an avoidance strategy is safer than shielding, and provide specific protection tips. We do not reject shielding in general, but describe ways to keep it at a minimum by intermittent use, as this is theoretically safer than extensive permanent shielding. We explain why metallic patches or "chips" or minerals claimed by sellers to be protective, do not seem to make sense and might even be risky. We finally suggest urgent research on the safety and efficacy of shielding methods combined with use of generators emitting weak pulses of similar frequency, intensity, and waveform with the natural atmospheric resonances.
人类接触人为电磁场（EMF）的水平已达到前所未有的高度，同时各种健康问题也随之增加。越来越多的研究表明两者之间存在关联。特别是在城市环境中，经常会出现被称为电磁超敏症（EHS）的症状。最近，一些私营公司和个人建议人们通过各种产品使用金属屏蔽来保护自己免受人为 EMF 的影响，但人们对这些产品的防护效果和安全性存在合理的担忧。事实上，即使正确应用，任何金属屏蔽措施不仅会衰减人为的完全极化 EMF，这些 EMF 被指控与健康问题有关，还会衰减负责所有动物生物节律和健康的自然非极化 EMF。20 世纪 60 年代和 70 年代的开创性实验提供了这方面的有力证据，志愿者们住在屏蔽的地下公寓里。我们分析了 EMF 屏蔽的物理原理、自然大气 EMF 的重要性，并根据基于科学的证据，检查了可用的屏蔽方法和建议的产品。我们认为，避免策略比屏蔽更安全，并提供了具体的保护建议。我们并非一概否定屏蔽，但描述了通过间歇性使用来将其保持在最低限度的方法，因为这在理论上比广泛的永久屏蔽更安全。我们解释了为什么销售商声称具有保护作用的金属贴片、“芯片”或矿物质似乎没有意义，甚至可能存在风险。最后，我们建议对屏蔽方法的安全性和有效性进行紧急研究，并结合使用发射类似频率、强度和波形的弱脉冲的发生器与自然大气共振。
