The age at which babies take their first steps is strongly influenced by their genes, according to new research. Scientists analyzed the genetic information of more than 70,000 infants. They ...

Every cell in our body has a sex. But most research so far has focused on our gonads—ovaries or testes—and not on the early ...

The fertility rate in the U.S. was on a constant decline between 2014 and 2020 and has fluctuated since then, CDC reports.

In our polarized political system, what's one thing that Democrats and Republicans have in common? Growing distrust and ...