Estrogen and progesterone are complementary reproductive hormones. Estrogen shapes everything from puberty to menstrual cycles to bone health, and progesterone is key to the second half of the ...

Estrogen is often regarded as the “master regulator” of the human body. It is involved in regulating various critical functions, such as reproductive health, bone density, and cardiovascular function.

For decades, estrogen was discussed primarily as a “sex hormone.” After all, it does play a crucial role in reproductive health. Yet starting in the 1980s, the conversation shifted when emerging ...