Sperm motility refers to the ability of sperm to move or "swim." It is one of the factors tested in a semen analysis. Learn why it's important for fertility. Motility refers to the ability of an ...

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 uncovered a key ...

New study reveals how stress boosts sperm motility through mitochondrial changes and epigenetic shifts. Study: Stress increases sperm respiration and motility in mice and men. Image Credit: Rost9 / ...

Rachel Feltman: For Scientific American’s Science Quickly, I’m Rachel Feltman. The World Health Organization estimates that infertility impacts one in six adults globally. But when it comes to ...

You probably hear a lot about male fertility, but not everything is true. Factors like sperm count, lifestyle choices, and age are often misunderstood, and false information can create unnecessary ...

A non-hormonal, reversible and non-toxic male birth control could be a step closer, with scientists successfully targeting a protein that's crucial in making fertile sperm. Knocking this protein out ...

Strong swimmers could help men outlive the competition. New research suggests that those with higher-quality sperm may enjoy nearly three extra years of life compared to their less agile counterparts.