CNN hosts derided Health and Human Services Secretary Robert F. Kennedy Jr.’s new guidance on biological differences between men and women.

How do behavior, morphology and physiology act in concert to improve a male's reproductive success - and ... Finally, in a few primate species, males use aggression or the threat of aggression ...

A recent Trump executive order defines sex based on gamete size. But the order oversimplifies genetics, hormones and reproductive biology.

Medical experts reveal the surprising connection between tight jeans and fertility issues, easy ways to protect your ...

HHS said it was implementing Trump’s executive order directing the government “to recognize two sexes, male and female. These ...

The U.S. Department of Health and Human Services has announced it will eliminate "gender ideology" from its policies, ...

While most animals reproduce sexually, some species rely solely on females for parthenogenetic reproduction. Even in these ...

The guidance defines female as a "person of the sex characterized by a reproductive system with the biological function of producing eggs (ova)," and male as a "person of the sex characterized by a ...

The Department of Health and Human Services, under the leadership of Robert F. | The Department of Health and Human Services, ...

and a growing team of reproductive urologists, Posterity Health is pioneering a new era of male fertility and hormone care. Employers, payers, and health systems recognize the cost-saving and ...

While they promise advancements, there’s growing worry about their impact on human health, particularly male ... systems for ...