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‘Count Down’: How The Chemicals All Around Us Are Affecting Fertility




Book cover for “Count Down: How Our Modern World Is Threatening Sperm Counts, Altering Male and Female Reproductive Development, and Imperiling the Future of the Human Race” by Shanna H. Swan and Stacey Colino.
Book cover for “Count Down: How Our Modern World Is Threatening Sperm Counts, Altering Male and Female Reproductive Development, and Imperiling the Future of the Human Race” by Shanna H. Swan and Stacey Colino.

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In 2017, environmental and reproductive epidemiologist Shanna Swann conducted a meta-study that found that sperm counts in Western men have gone down over fifty percent over the last forty years. 

And that’s the tip of the reproductive iceberg, when it comes to how lifestyle and environmental factors are affective humans’ fertility, according to the new book co-authored by Swan and health writer Stacey Colino: “Count Down: How Our Modern World Is Threatening Sperm Counts, Altering Male and Female Reproductive Development, and Imperiling the Future of the Human Race.”

We sit down with Swan and Colino to discuss what they discovered over the course of researching their book. 

With guest host Libby Denkmann

Guests:

Shanna H. Swan, environmental and reproductive epidemiologist; professor of environmental medicine and public health at the Icahn School of Medicine at Mount Sinai in New York City; co-author of “Count Down: How Our Modern World Is Threatening Sperm Counts, Altering Male and Female Reproductive Development, and Imperiling the Future of the Human Race

Stacey Colino, writer specializing in health and environmental issues; co-author of “Count Down: How Our Modern World Is Threatening Sperm Counts, Altering Male and Female Reproductive Development, and Imperiling the Future of the Human Race