Human sperm have long been a subject of fascination—not just for their role in fertilization, but for their remarkable ability to navigate through some of the most viscous environments in the body.

New research shows how sperm RNA changes as men age, revealing a biological shift that may affect reproduction and child ...

In one of the most surprising innovations in medical technology, scientists have created tiny, remote-controlled “sperm-bots” that could one day swim through the human body to deliver drugs, diagnose ...

While men may be able to have children much later than women, doing so could come with an increased risk of inherited disease for their children. Researchers from the Wellcome Sanger Institute have ...

An epigenetic study found that sperm DNA methylation changes with paternal age at thousands of genomic sites, including regions linked to autism. Age-related epigenetic shifts in sperm may help ...