At its annual meeting last month, the American Medical Association's House of Delegates adopted several new policies, including one that recognizes that bisphenol A (BPA) interferes with human hormones, one that decries the practice of competitive eating and one calling for more research on full-body scanners used in airports.

The AMA says BPA is an endocrine-disrupting agent and wants products with the potential to increase human exposure to the chemical to be clearly identified. Studies have shown that BPA may be linked to male sexual dysfunction, cardiovascular disease, diabetes and liver abnormalities.