Over the past 50 years, human sperm counts appear to have fallen by more than 50% around the globe, according to an updated review of medical literature.If the findings are confirmed and the decline continues, it could have important implications for human reproduction.Researchers say it would also be a harbinger of declining health in men in general, since semen quality can be an important marker of overall health.
#years #development #researchers #public-health #participants #conclusions #south-america #important-role #physical-activity #reproduction
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