Sperm counts are declining worldwide at an accelerating rate, according to a recently published meta-analysis.
An international team of researchers, who reviewed 2,936 scholarly abstracts and 868 full articles, analyzed data from 38 sperm count studies done on six continents, updating their landmark study of 2017. The study, published in the journal Human Reproduction Update in November 2022 is based on semen samples collected from 1973 to 2018.
