Medically reviewed by Isabel Casimiro, MD, PhD Over time, levels of the hormones testosterone and estrogen can become ...

Hormone replacement therapy (HRT) has come a long way since it was first available — we now know that it is not a simple ...

Medically reviewed by Peter Weiss, MD Estrogen is a hormone that plays an important role in reproduction. It's the primary ...

New study shows how testosterone levels influence type 2 diabetes risk differently across age groups, offering insights for ...

I'm scared of breast cancer from hormone replacement. Laura Corio ... to switch over to the natural progesterone. But what had happened was the study was really done on synthetic hormones and ...