They hope to develop the “exercise hormone” into therapeutics that harness the benefits of exercise for people unable to do so.

When researchers removed the reproductive organ, female rats had more difficulty solving a water maze.

The University of Illinois professor studied the role of estrogen in breast cancer.

The reproductive biologist uncovered hormones important for fertility cycles.

A study of more than 450,000 people finds a certain genetic variant associated with eating more carbs is linked to a thicker waist and higher blood pressure, but less fat.  

Research into the biological basis of gender identity is in its infancy, but clues are beginning to emerge.

Doctors report that a regimen of hormones, an antiemetic drug, and pumping gave the woman enough milk production to feed her baby exclusively breastmilk for six weeks.

The gel, which men rub on their upper bodies daily, delivers synthetic progestin to block the testes from producing normal levels of sperm.

Asprosin—involved in a rare disease called neonatal progeroid syndrome—targets neurons to stimulate appetite, and blocking the hormone wards off weight gain in rodents.