Add Yahoo as a preferred source to see more of our stories on Google. Colton Underwood of The Bachelor fame learned that he had a low sperm count in the course of planning for a baby. (Noel ...

(CNN) — 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 ...

Having even a mild COVID-19 infection could trigger a months-long drop in sperm, a new study finds. Researchers found both lower sperm concentrations and fewer sperm that were able to swim when ...

A series of peer-reviewed studies published in a new book found that sperm concentration among men from Western countries had halved from 1973 to 2011, with no evidence of “leveling off” in the ...