
In Count Down, Dr. Shanna Swan, a leading environmental and reproductive epidemiologist, explores how the modern world is threatening sperm counts and human fertility.
when I first heard about about your book and I started going over the the details of it and the subject matter. I was shocked.
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"Joe Rogan mentions the guest's book regarding toxins and the survival of the human race. Shanna Swan is the author of 'Count Down'."