For a long time, having children has been a young person’s game. Although ancient records are sparse, researchers estimate that, for most of human history, women most typically conceived their first ...

Declining female fertility is a health issue that has received broad global attention. Oocyte quality is the key limiting factor of female fertility, and factors affecting oocyte quality involve the ...

Hormones coordinate different body functions by carrying messages through the bloodstream to target cells and tissues. Hormonal imbalances occur through inadequate or excess hormone synthesis, which ...

Over seven months in the fall of 2012 and the spring of 2013, nine women who had been born without wombs received uterine transplants from living donors; mostly, their mothers. The transplants took ...

A study identifies a particular human-accelerated region, or HAR, of the human genome that promotes an advanced human trait ...

Global fertility rates are declining. Experts warn of potential societal collapse. Reduced births could strain essential ...

Mention melatonin and many people think of the over-the-counter sleep aid. But the hormone made in the brain’s pineal gland controls much more than just how sleepy we get, according to research ...