“We have fertility rates that are just spiraling. A teenager today, an American teenager, has less testosterone than a ...

Robert F. Kennedy Jr. raised concerns about declining testosterone and sperm counts in young American men. He links this to ...

The trade-off was that the injections would severely reduce his sperm count. McKinnon, 32, and his wife weren’t ready to ...

Professor Luke O’Neill said the loss of fertility with age is “more serious” for women, but still something that men need to ...

The Columbia University Fertility Center used AI to find viable sperm in an infertile man, offering new hope of biological ...

Whether men of the past were left out or checked-out of the fertility conversation depends on who you ask. But old beliefs ...

From Joe Rogan to Dax Shepard, men are taking testosterone supplements to increase virility. In reality, it's harming their ...

Super sperm donors” who father hundreds of children could be stopped by the EU over ethical concerns, amid calls for ...

Males imprint their DNA by adding methyl modifications to it in a way that alters the activity of genes in order to promote ...