The actions of estrogen are mediated by the estrogen receptor (ER), a dimeric nuclear protein that binds to DNA and controls gene expression. Like other steroid hormones, estrogen enters passively into …

Estrogen is a sex hormone that’s necessary for maintaining your sexual and reproductive health. Estrogen levels naturally fluctuate during your menstrual cycle and decline during menopause.

Apr 22, 2025 · In this article, we look at estrogen in more detail, including how it works, what happens when the levels fluctuate, and medical uses.

Oct 14, 2025 · Estrogen is a sex hormone produced in both the male and female human body. It impacts more areas of health than you may realize, though the focus here is on estrogen in female bodies. …

3 days ago · High estrogen may be caused by pregnancy, PCOS, and medications, among other factors. Doctors break down how to test your levels and what to do if they're high.

Nov 21, 2025 · Estrogen is a hormone that plays a role in sexual development, bone health, mood regulation, and more. Find out how fluctuating levels can affect you.

Nov 29, 2025 · Discover what constitutes a normal estrogen level based on age and sex, and learn the key indicators of hormonal imbalance.

Estrogens are a group of hormones that play an important role in the normal sexual and reproductive development in women. They are also sex hormones. The woman's ovaries make most estrogen …

Nov 19, 2025 · estrogen, any of a group of hormones that primarily influence the female reproductive tract in its development, maturation, and function. There are three major hormones—estradiol, …

Discover what estrogen is, how it works, and why it matters for people of all sexes. Learn about estrogen types, production, functions, and life cycle changes.