US research says low-frequency magnetic fields do not increase the risk of brain tumors in children
Release date: 2010-09-14
US researchers have reported that exposure to low frequency magnetic fields does not increase the risk of brain tumors in children.
Researchers at the University of California, Los Angeles, reported in a new issue of the American Journal of Journal of Oncology that they have been studying the relationship between magnetic fields and human health since 1979, but research has not found that low-frequency magnetic fields are easy for children to suffer. Adequate evidence of brain tumors.
The researchers analyzed 10 research data related to this. These studies involved approximately 20,000 children, of whom 8,400 were brain tumor patients. Analysis shows that none of these brain tumor patients have been exposed to low frequency magnetic fields for a long time. The study also found that even long-term exposure to high-frequency magnetic fields may be associated with very few brain tumor cases, but because of this very small proportion, researchers cannot confirm that magnetic fields are inextricably linked to childhood brain tumors.
The researchers pointed out that although each study took a different approach to measuring the magnetic field, the results were consistent, that is, the low frequency magnetic field did not increase the risk of brain tumors in children.
The study also found that long-term exposure to high-frequency magnetic fields may increase the risk of leukemia in children. But Lik Kefitz, a leading contributor to the study, said that most animal-oriented research or laboratory data does not support this conclusion.
Kefitz pointed out that people living near high-voltage lines do not have to rush to move because they are worried about leukemia, because the connection between the two is not very clear.
A magnetic field is a special form of matter that exists in the space surrounding a current, a moving charge, a magnet, or a changing electric field. In human life, magnetic fields are everywhere, and high-voltage lines, generators, transformers, telephones, televisions, and cell phones all generate magnetic fields. The influence of magnetic fields on the human body has always been a subject of long-term research by scientists. Household appliances, ordinary wires, etc., are mostly low-frequency and extremely low-frequency magnetic fields.
Source: Xinhuanet
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