Researchers have discovered a link between certain chemicals found in plastics and the premature births. The chemicals are from a class called phthalates, and they're used in a wide variety of household products as well as in food processing lines. However, when they get into people's bodies, there's evidence that they can disrupt human hormone systems. And now American scientists have found that women whose bodies had high levels of a particular phthalate just before they conceived ended up significantly more likely to give birth too soon. Carmen Messerlian, an epidemiologist at the T.H. Chan... Like this podcast? Please help us by supporting the Naked Scientists