When it comes to male fertility, not all sperm are created equal. In an Instagram reel, embryologist Dr. Lisa Lee (@drlisalee_ivf) broke down the differences between "good" and "bad" swimmers, ...

Sperm are produced continuously from puberty onwards and can be stored in the reproductive tract before ejaculation. That ...

Scientists warn that storage may cause sperm to lose quality over time, raising new concerns about fertility and conception ...

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 ...