More evidence points to the dangers of Bisphenol-A, or BPA, the chemical found in many plastic products like water bottles and food containers.
A new study finds women exposed to BPA during early pregnancy are more likely to have children with wheezing problems.
Researchers studied 367 children born to mothers with detectable levels of BPA in their urine. At six months, the odds of wheezing were twice as high for children with mothers with the highest BPA levels than those with the lowest.
Higher BPA concentrations at 16 weeks of pregnancy was closely associated with wheezing, but increased levels at birth had no effect.