Hormones are chemical messengers that are secreted directly into the blood, which carries them to organs and tissues of the body to exert their functions.

The production of the sex hormones testosterone, progesterone, and estrogen is controlled by two other hormones, which are known as luteinizing hormone (LH) and follicle stimulating hormone (FSH ...

Female reproductive hormones cycle daily as well as monthly, a small study suggests. The finding may help explain why some women experience daily mood fluctuations. It is well-established that ...

Female sex hormones play important roles in sexual development, sexual desire, and reproduction. Learn more about the types and roles of these hormones here.

Each of the four phases of the menstrual cycle is dictated by a spike or fall of hormones like estrogen, follicle-stimulating hormone (also known as FSH), luteinizing hormone (or LH), and ...

Medically reviewed by Isabel Casimiro, MD, PhD Hormones are your body's chemical messengers. They're important for growth and development, sexual function, mood, metabolism (how your body creates ...

MARIEME MBAYE: So there are four big hormones that fluctuate the most. And that's estrogen, progesterone, and then FSH, which is follicle-stimulating hormone and luteinizing hormone, or LH.

Polycystic ovary syndrome is a condition in which your hormones are out of balance. PCOS can affect your health and pregnancy. Find out how.

Don't know what's going on during your menstrual cycle? You're not alone. We asked two doctors to explain every phase from ovulation to periods.