This article was reviewed by Julia Switzer, MD, FACOG. Estrogen vs. Progesterone: Key Menopause Hormones Explained Key Takeaways: Estrogen and progesterone are complementary reproductive hormones.

Research shows that estrogen administration, such as through HRT, can increase resting energy expenditure by up to 200-220 ...

With the black box warning a thing of the past, interest in these once-controversial medications is growing, say experts.

Feminizing hormone therapy increases estrogen levels and decreases testosterone levels to induce traditionally female characteristics in the body.

Hormone replacement therapy (HRT) is a treatment for symptoms of menopause, including hot flashes, difficulty sleeping, muscle pain, and vaginal dryness. While people may gain weight while taking HRT ...

Traditionally, trans people take hormones in high enough amounts to produce drastic changes right away. But microdosing produces more subtle results.

Joint pain and body aches are also common. How menopause causes these symptoms isn’t fully understood, but experts say they may stem from the loss of moisture and elasticity in connective tissues like ...

Medically reviewed by Kiarra King, M.D. Pregnancy hormones are amazing and, at times, mysterious things. These powerful chemicals don’t just help your body grow a baby; they also influence your ...

As your 40th birthday approaches, you may feel apprehensive about aging. Body changes at 40 in women are often related to perimenopause (the transition into menopause), during which hormones like ...

Disruptions to our circadian clocks—the internal molecular timekeepers "ticking" in nearly every cell of our body throughout ...

Your body temperature might seem like just another vital sign, but it quietly reveals more than most people realize. From metabolism to mood, fluctuations in your temperature can serve as a hidden ...