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According to a
new study, exposure to the gender-bending chemical Bisphenol-A (BPA) is worse than previously estimated. The study, which appeared Monday in
Environmental Health Perspectives, is the first to recreate the chronic daily intake of BPA in humans, which leaches into our food - our primary channel for exposure - via its packaging. Researchers showed this by feeding a steady BPA-spiked diet to mice, whereas previous studies have only used a single exposure.
BPA has been linked to fertility problems, obesity, diabetes, heart disease, attention deficit disorder and cancer. Scientists at the University of Missouri, led by Cheryl Rosenfeld, found that a constant stream of BPA into the body could result in the chemical sticking around longer than expected.
"When BPA is taken through the food, the active form may remain in the body for a longer period of time than when it is provided through a single treatment, which does not reflect the continuous exposure that occurs in animal and human populations," Rosenfeld said. "We need to study this further to determine where the ingested BPA becomes concentrated and subsequently released back into the bloodstream to be distributed throughout the body."