Reproductive ‘wake-up call’? Mystery decline in sperm count of men in industrialized countries

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An international team of scientists analyzed data from nearly 43,000 men in dozens of industrialized countries and found that sperm counts dropped by more than half over nearly four decades.

“I think that we should take this very seriously,” says Shanna Swan, a reproductive epidemiologist at the Icahn School of Medicine at Mount Sinai in New York. She helped conduct the study published in the journal Human Reproduction Update. “I think it’s a wake-up call,” Swan says.

“Since this is the best study that’s ever been done, it is concerning that it suggests such a progressive and dramatic decrease in sperm counts over time,” says Peter Schlegel, a professor and chairman of urology at Weill Cornell Medicine in New York. Schlegel serves as vice president of the American Society for Reproductive Medicine.

Swan suspects that one factor may be exposure to chemicals while in the womb, which could harm the normal development of males’ reproductive systems.

Swan acknowledges that other factors could be playing a role. The global obesity epidemic could be cutting sperms counts, for example.

“There’s also stress, which is related to sperm count,” she says.

The GLP aggregated and excerpted this blog/article to reflect the diversity of news, opinion, and analysis. Read full, original post: Sperm Counts Plummet In Western Men, Study Finds