According to a recently released meta-analysis, sperm counts are decreasing globally and at an accelerated rate due to a class of chemicals known as endocrine disruptors.
An international team of researchers updated their ground-breaking 2017 study with this article (pdf below), which was published in the journal Human Reproduction Update in November 2022 after reviewing 2,936 academic abstracts and 868 complete articles and analyzing data from 38 sperm count studies conducted on six continents.
According to a 2017 study, sperm counts had decreased by more than 50% over a fifty-year period across North America, Europe, and Australia. This data was updated in the current study, which also included data from South and Central America, Asia, and Africa.
“The aim of this study was to examine trends in sperm count among men from all continents. The broader implications of a global decline in sperm count, the knowledge gaps left unfilled by our prior analysis, and the controver...
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