WIKIMEDIA-COMMONS

WIKIMEDIA-COMMONS

The common industrial chemical bisphenol A (BPA) has been linked to many ills, including reproductive abnormalities, cardiovascular disease and cancer. Much of the evidence for these associations, however, has been drawn from animal or in vitro research and has been somewhat controversial as to its precise implications for human health.

Compared with the control group, the men who worked in the BPA-based factories had more than four times the chance of having lowered sperm counts and more than double the risk of having lower sperm motility (swimming ability). The results of the analysis, which controlled for potentially confounding factors (including age, heavy metal and other chemical exposures, chronic disease, smoking, alcohol use, sexual history, etcetera), were published online October 28 in Fertility and Sterility in a study led by De-Kun Li, a reproductive and perinatal epidemiologist at the Kaiser Permanente Division of Research in Oakland, Calif.

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