Longer abstinence was linked to sperm DNA damage and poorer movement, which can reduce sperm’s ability to fertilize an egg.

When it comes to reproduction, female biology is often described in terms of a ticking clock. Women are born with most of ...

Men who’ve had COVID-19 may face hidden fertility risks. This study uncovers how the virus disrupts sperm health, even months after recovery. Study: COVID-19 infection was associated with poor sperm ...

Osaka, Japan – Infertility affects about one in six couples, and male factors account for roughly half of all cases—often because sperm don’t swim well. Researchers from the University of Osaka ...

Microgravity affects sperm navigation and reduces fertilization success, raising challenges for space reproduction and embryo ...

New research suggests it's more than previously advised.