The average sperm count in men worldwide has significantly decreased over the past four decades, according to a study by the Hebrew University of Jerusalem. The study, which analyzed data from over 57,000 men in 53 countries from 1973 to 2018, found that the average sperm concentration dropped from 101.2 million to 49 million sperm per milliliter of semen. The rate of decline is also increasing, with a current decrease of 1.1% per year. The study did not provide reasons for the decline, but experts suggest that increased exposure to estrogen through drinking water and electromagnetic radiation from devices may be contributing factors.
While the study did not identify the reasons for the decline in sperm count, experts suggest that increased exposure to estrogen through drinking water and electromagnetic radiation from devices may be contributing factors. The study’s large sample size from various regions of the world strengthens its findings, which confirm a 2017 study that only included men from North America, Europe, Australia, and New Zealand. Although the current decline in sperm concentration has not yet negatively impacted fertility, a low sperm count is a risk factor for testicular cancer. If the trend continues, it could also threaten the natural reproductive ability of humans. However, in vitro fertilization can still enable men with significantly lower sperm counts to father children.
The study’s findings highlight the need for further research to identify the causes of the decline in sperm count and to develop strategies to address the issue. Experts suggest that reducing exposure to estrogen and electromagnetic radiation may help mitigate the decline. The study also underscores the importance of monitoring reproductive health and fertility rates to ensure the continued ability of humans to reproduce naturally.
