Medical memo: Insecticides, testosterone, and fertility
Medical memo
Insecticides have produced major benefits for America's farmers and businessmen, as well as for gardens and homes just like yours. But because they are toxins, the chemicals that kill unwanted critters also have the potential to affect human health. And a study from the Harvard School of Public Health and the Centers for Disease Control and Prevention suggests that one insecticide may reduce the levels of male reproductive hormones and impair sperm quality.
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