The World Health Organization advises against ejaculating two to seven days before providing a sperm sample for analysis, ...

New research suggests sperm quality may decline with longer abstinence. In A Nutshell Sperm don’t just “sit” in storage. They ...

Researchers outline how specialized tubules in the hen’s oviduct sustain sperm and how management practices could safeguard ...

Male contraceptive research is advancing, with oral, injectable, and topical options entering clinical trials. Both hormonal ...

Recent studies connect Y chromosome loss with several serious health conditions. These include heart disease, brain disorders ...

The worker who confessed to the murders was pinned by the novel evidence of DNA fingerprinting; his genetic fingerprint ...