jjablkowski's blog


Recently I came upon a complex article about the alarmingly low sperm counts and sperm concentrations of some of the 43 000 men measured between 1971 and 2013.[1] Using various statistical methods, the data were compiled from over 750 abstracts and close to 2500 articles published over 42 years. Laboratory results from men from North America, Europe, New Zealand, and Australia (called the Western group) were compared and contrasted with results from men from South America, Asia, and Africa.

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