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Chemical in Plastic Shown to Affect Male Fertility

The New York Times’ Well blog reports on a study published in Fertility and Sterility that examined the effects of chemical exposure on the fertility of males and females. Researchers tracked 501 couples who were trying to conceive over a period of 4 years and took urine specimens for analysis. They found that the biggest gender gap in infertility came from phthalates, a chemical used to make plastic more pliable, where exposure was only linked to infertility in males. Experts say that phthalates affect how testosterone is produced and that although females also produced androgens, it is to a lesser degree, thus explaining the gender gap.

Read it in The New York Times’ Well blog.

Read the study in Fertility and Sterility.