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anything labeled with the recycling code three, six, or seven goes into the trash. (In my research on BPA, I encountered a mnemonic device with the lilt of a nursery rhyme: “Four, five, one, and two/All the rest are bad for you.”)
In fact, an early clue to the potential risks posed by plastic was discovered entirely by accident. In August of 1998, Washington State University geneticist Patricia Hunt found herself baffled by an unexpected development in her lab. Hunt was using experiments on lab mice to explore why the eggs of older women are…