Prefer Newsweek on Google to see more of our trusted coverage when you search. When it comes to male fertility, not all sperm are created equal. In an Instagram reel, embryologist Dr. Lisa Lee ...

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

Wellness brands are fueling a growing demand for male-fertility products, selling supplements and sperm-testing kits.

People use donor sperm to get pregnant for many reasons. A couple may use donated sperm due to male infertility. Single women or LGBTQIA+ couples may use a sperm donor to help them build a family.

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 ...