New health concerns have been raised about the plastic chemical bisphenol A (BPA); a study suggests that there is a link between high levels of exposure to BPA and an increased risk of heart disease and diabetes. While the new study doesn't prove a cause and effect relationship, only a correlation, it is the first human survey to follow up on troubling findings from animal studies. The chemical, which is often found in baby bottles, sports water bottles, and other non-recyclable containers, has gotten several waves of bad press in the past few months. A recent experiment showed that extremely high doses of the chemical damage monkeys' brains, and other work
in animals has suggested that BPA has the potential to disrupt normal hormone signalling by mimicking the natural hormone, oestrogen. Such studies have linked the chemical to a wide range of conditions, including low sperm count, altered fetal development, ...
