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Common chemical in mothers may negatively affect the IQ of their unborn children

In some women, abnormally high levels of a common and pervasive chemical may lead to adverse effects in their offspring, researchers report. The study is the first of its kind to shed light on the possible harmful side effects of perchlorate in mothers and their children. "The reason people really care about perchlorate is because it is ubiquitous. It's everywhere," said one investigator. "Prior studies have already shown perchlorate, at low levels, can be found in each and every one of us."
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