“Our previous studies and observations, taken together, led us to hypothesize that dietary L. reuteri may act to prevent age- and obesity-related testicular atrophy in mice,” those researchers noted. ...

A study has suggested that soda consumption may increase testosterone levels and testicle size in men. The study, conducted by researchers at the Northwest Minzu University in China and published in ...

Far-right talking heads like Tucker Carlson love bemoaning the state of masculinity, as measured by their very narrow and stereotypical lens, as though it is in some sort of crisis. To that end, ...

The human body is a machine whose many parts—from the microscopic details of our cells to our limbs, eyes, liver and brain—have been assembled in fits and starts over the 4 billion years of our ...

Men who have smaller testes are more likely be better dads to their toddlers, according to a study published in The Proceedings of the National Academy of Sciences. Researchers from Emory University ...

Dominant male lemurs flexibly grow their testicles when other males are around, putting them in a better position to successfully mate. In many species, dominant males have larger testes than ...