The human race could be in danger as sperm counts continue to fall, an epidemiologist said, according to Axios.
Mt. Sinai Medical School epidemiologist Shanna Swan co-authored an analysis back in 2017 that found total sperm count in the Western world had decreased by 59% between 1973 and 2011.
Swan has now authored a new book called “Count Down: How Our Modern World Is Threatening Sperm Counts, Altering Male and Female Reproductive Development, And Imperiling the Future of the Human Race,” which draws on earlier conclusions of her sperm count study.
“If you look at the curve on sperm count and project it forward–which is always risky–it reaches zero in 2045,” Swan said, noting that the average man would have no viable sperm, according to Axios. “That’s a little concerning, to say the least.”
The dire findings could leave the world struggling to procreate.
Between 1964 and 2018, the global fertility rate has fallen from 5.06 to 2.04. To make matters more concerning, many countries across the world, including the U.S., have fertility rates below replacement levels, according to a study from Yale Global. The affected nations account for about half of the world’s population, according to the study.
“In some parts of the world, the average twenty-something woman today is less fertile than her grandmother was at 35,” Swan wrote, according to the New York Post (NYP).
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