If you're looking to uncover family history or learn more about your health, here's how to decide which DNA testing kit is ...

Through genetic testing, millions of Americans are estimated to have discovered that their parents aren’t who they thought.

Before the premiere of “Inside the Worlds of Epic Universe," Manganiello sat down with TODAY.com and talked about all the ...

Men typically lose Y chromosomes from their cells as they get older, which could be affecting their heart health ...

Men who lose the Y chromosome in blood cells face higher heart disease risks, independent of smoking, obesity, or diabetes.

Thousands of years ago, the number of men drastically dropped compared to women—and the timing aligns with the onset of the Younger Dryas. Some now wonder if a global cataclysm reshaped the ...

World Athletics has said all athletes competing as women must have an SRY gene test to identify whether a male Y chromosome is present.

On Wednesday, July 30, World Athletics announced specifics on a new gene testing policy for athletes competing in the female category.

From Australian birds to human clinics, the science keeps pointing to the same conclusion: Sex is a spectrum, not a switch.