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Published on : Jul 26, 2017

A new study published in the journal Human Reproduction Update has revealed that sperm counts in men from developed countries such as America, Australia, New Zealand, and Europe have reduced by more than 50% in less than the past 40 years. Researchers who undertook the study, from the Hebrew University-Hadassah Braun School of Public Health and Community Medicine, Jerusalem, have also said that declining rate sperms is not slowing, pointing to a potential decline in the health and fertility of men in these countries.

Hagai Levine, who co-led the research said that the results are an urgent wake-up call for health authorities and researchers across the globe to investigate the reasons behind this ongoing decline in sperm count. The study did not cover the factors leading to the decline, but researchers have noted that declining sperm counts have previously been linked with a number of factors, including stress, smoking, obesity, and exposure to some pesticides and chemicals.

Many research studies have reported reduction in sperm count since the early years of 1990s, but a significant number of those studies were questioned because they did not account for important factors such as type of men, sexual activity, and age. In this study, the researchers brought together and screened results from 185 studies recorded over the period between 1973 and 2011. The results indicate there was a 52.4% reduction in sperm concentration and a 59.3% reduction in sperm count among men in Europe, North America, Australia, and New Zealand.