Count Down: Chemicals linked to inferior sperm

By Ben Harder, 15:49 PM April 15, 2008

Men's exposure to some compounds common in cosmetics and plastics is associated with sperm abnormalities, a new study suggests. The data don't establish a causative link between so-called phthalates and aberrant semen, but they bolster the case that phthalate concentrations typically seen in healthy people may have a negative effect on male reproduction.

Scientists have been working for years to understand the causes in developed countries of an apparent half-century-long decline in sperm qua...

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