Women over 45 may not need hormone blood tests as often as they think, according to Pelin Batur, MD, of the Cleveland Clinic Women’s Comprehensive Health and Research Center. She says estradiol and ...

Men and women who appear hormonally ‘normal’ may still have undetected disruptions in the timing and coordination of their reproductive hormones that could impair fertility, according to research ...

Each month during a woman's menstrual cycle, an ovary prepares 10–20 antral follicles, fluid-filled sacs that hold immature eggs, for maturation. In most cycles, only one follicle is selected to ...

Before you panic over your AMH number, here’s what fertility specialists actually want you to know. Getty Images AMH testing is one of the most searched fertility topics right now, fueled by the egg ...

If you’ve scrolled past an ad for an at-home fertility test or started researching egg freezing, you’ve probably seen three little letters: AMH. Anti-Müllerian hormone testing has become one of the ...

A social media post from the US Food and Drug Administration this week shows a big-eyed macaque staring out from behind bars. “Some drugs use 144 monkeys on average for preclinical testing,” the post ...

Lee Zeldin, the E.P.A. administrator, revived a plan created during the first Trump administration to end the testing of chemicals on mammals. By Lisa Friedman The Environmental Protection Agency will ...

CLEVELAND, Ohio (Jan 21, 2026)—Women diagnosed with premature ovarian insufficiency (POI) are at risk for more health problems than women who enter menopause after the age of 40. Although hormone ...

The start-up Function will send practically anyone to a lab for extensive medical testing, no physical required. Is that a good thing? By Kristen V. Brown As Kimberly Crisp approached middle age, ...