Bisphenol A (BPA), a controversial chemical many scientists say
contributes to a variety of health problems, has been used for years to
harden plastics, like the plastic used in many baby bottles. You've
probably heard the outcry among parents and seen the shift to "non-BPA"
plastic bottles, glass bottles, stainless steel bottles and the like.
Now
scientists say that either BPA is not eliminated from the body as
quickly as its defenders have always claimed, or we are all exposed to
much more of it than previously supposed. Researchers tested
subjects by having them fast for various lengths of time and found that
the BPA in participants' urine changed little from those who had
recently eaten to those who had fasted for several hours.
Scientists speculate that tap water, house dust, and
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