New research shows that the surrounding cells and tissues of the ovary play a crucial role in how eggs mature and how quickly fertility wanes.

The ticking of the biological clock is especially loud in the ovaries—the organs that store and release a woman's eggs. From age 25 to 40, a woman's chance of conceiving each month decreases ...

Researchers built the first cross-species atlas of ovarian aging, showing how cell types and nerve networks may hold the key ...