releasing eggs, which can potentially be fertilized by sperm producing female sex hormones, such as progesterone and estrogen providing an environment for a fertilized egg to develop during pregnancy ...

Urologists are doctors who treat conditions of the urinary tract in men and people assigned male at birth (AMAB) and women and people assigned female at birth (AFAB). Your urinary tract is your body's ...

Relative Energy Deficiency in Sport (REDs) was first introduced in 2014 by the International Olympic Committee’s expert writing panel, identifying a syndrome of deleterious health and performance ...

Aging affects every organ in the body, yet we still know little about how the ovary changes over time. In a new study published in Nature Aging, Yale researchers created one of the most detailed maps ...

About 9% of men of reproductive age in the United States experience fertility problems. One of the many causes of male ...

In mid-2020, while Covid lockdowns gripped the country, Luke and his wife decided to start a family. "All through my teens the message was clear: don't have sex without a condom or you might get ...

Matthew Wosnitzer, MD, is a urologist specializing in male reproductive medicine and surgery at Yale New Haven Health System. Semen is a fluid that carries sperm out of the body during ejaculation.

Oryzias latipes, commonly known as medaka, is a small fish measuring about 2–3 cm (0.8–1.2 inches) in length that exhibits ...

How has testosterone been historically misunderstood, and what implications does that have for current public policy?

Animals often use recent experience to guide future choices. Whole-brain imaging in larval zebrafish (Danio rerio) reveals a dedicated neural circuit that governs history-biased decisions: the ...