The first major study to examine the relationship between mobile phone use during pregnancy and behavioral problems in children later, an overwhelming majority to come back with a conclusion that use of the phone places undeveloped babies risk.
Researchers at the University of California-Los Angeles (UCLA) and Aarhus, Denmark surveyed 13,519 women who were born in Denmark in the 1990s about their habits of mobile phone use during pregnancy, and use of their children until the age of cell phones than seven years. Because mobile phone use was less widespread a decade ago, about half of women in the survey had not used the phone during pregnancy, or use them rarely.
Women who use mobile phones for two or three times a day during pregnancy were 54 percent more likely to have children developed behavior problems when they reached school age than women who do not use them. The risk of behavioral problems increased with maternal use mobile phones while pregnant.
If children use the phone while they are children, who were 80 percent more likely to have behavioral problems, 25 percent more likely to suffer from emotional problems, 34 percent more likely to have difficulty peer relationships, 35 percent more likely to be hyperactive and 49 percent more likely to have behavior problems than children who do not use mobile phones.
The research is published in the Journal of Epidemiology.
One of the principal researchers, Leeka Kheifets of UCLA had, who has already stated in writing that there was "no consistent evidence for a causal relationship between exposure to RF fields [including those of mobile phones ] and all adverse effects on health. "A well-known skeptic of the connection between mobile phone use and health or behavioral problems, Kheifets admitted to being surprised by the results of the investigation.
Researchers have tried to demonstrate that some other confounding factor - such as smoking during pregnancy, socioeconomic status or family history of mental illness - caused the observed behavioral effects. But when corrected for these factors, the contribution of mobile telephony has become statistically stronger reality.
Saying he knew nothing about the biological mechanism by which cell phones can cause behavior problems, researchers have asked that their results "should be interpreted with caution." They also suggested that there may be a causal link between cell phone use and any other factor, which leads to behavioral problems - such as the omission of a mother who spends too much time on the phone.
But they acknowledged that "if [the results] are real, they would have serious consequences for public health."
Sam Millham and the Mount Sinai School of Medicine and the University of Washington School of Public Health, said he is certain the results are accurate. A recent research carried out in Canada on pregnant rats demonstrated that radiation similar to mobile phones has caused structural changes in the brain of the fetus, "he said.
Millham is considered a pioneer in research on the relationship between mobile phone use and adverse effects on health.
The results can not be long after the Russian National Committee issued a new warning non-ionizing radiation, cell phone use in pregnant women and children. The use of mobile phones for children can lead to short-term "disruption of memory impairment of attention, impaired learning and cognitive abilities, increased irritability", while the long-term use can lead to "severe depressive syndromes [ and] degeneration of the nervous system structures of the brain. "
The Committee advised pregnant women and children to limit their exposure to cell phones, warns that the health risk from the devices "are not much lower than the risk of children's health from tobacco or alcohol. "
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