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Sperm counts of men in North America, Europe, Australia and New Zealandare plunging, according to a new analysis published Tuesday.
Among these men there has been a 52% decline in sperm concentration and a 59% decline in total sperm count over a nearly 40-year period ending in 2011, the analysis, published in the journal Human Reproduction Update, said.
http://www.cnn.com/2017/07/25/health/sperm-counts-declining-study/index.html