过去,电磁场被人们认为是无害的。但是,近年日本一些科学家提出了电磁场的安全问题,以及可能与癌症、特别是儿童白血病有关系,引起人们的注意和关切。电磁场对人体究竟有无影响?在科学界争论的焦点主要是与60赫兹的电源有关的电磁场,也就是一般家用电器和照明用的那种电源。X射线和微波以及60赫兹的电磁场都是各种类型的电磁能,但它们的频率差别巨大。X射线和伽马射线的频率比60赫兹 In the past, electromagnetic fields were considered harmless. However, in recent years, some Japanese scientists have raised the issue of the safety of electromagnetic fields and their possible association with cancer, especially childhood leukemia, arousing people’s attention and concern. Electromagnetic field has no effect on the human body? The debate in the scientific community is mainly focused on 60 hertz of the electromagnetic field-related power, that is, the general household appliances and lighting that kind of power. X-rays and microwaves and 60 Hz electromagnetic fields are all types of electromagnetic energy, but their frequencies vary widely. X-rays and gamma rays have a frequency ratio of 60 hertz