Hormones coordinate different body functions by carrying messages through the bloodstream to target cells and tissues. Hormonal imbalances occur through inadequate or excess hormone synthesis, which ...

Medically reviewed by Kelly Wood, MD Key Takeaways Hormones serve as chemical messengers in the body and regulate functions ...

Did you know your body is full of chemical messengers that help regulate your various organs and body systems? There are at least 50 such chemicals, called hormones, in the human body. Their levels ...

Hormones are the body’s chemical messengers. They act on various tissues and organs in the body to change their behavior. For example, the hormone prolactin stimulates the production of breastmilk.

From human development to certain diseases developing, hormones can affect the body in several ways. “Hormones are chemical messengers that are normally created in one part of the body and go to ...

Progesterone is a hormone that supports menstruation and pregnancy. It typically rises during pregnancy and while using some birth control medications. Low levels can affect menstruation and fertility ...

Sex hormones are considered critical regulators of sex-related characteristics in both males and females during puberty. They also play a critical role in regulating skeletal growth during periods of ...

Infertility or reduced fertility is a common problem in the United States. According to the Centers for Disease Control and Prevention, nearly 1 out of 5 women are unable to get pregnant after a year ...

Female hormones can suppress pain by making immune cells near the spinal cord produce opioids, a new study from researchers at UC San Francisco has found. This stops pain signals before they get to ...

A recent study in Nature examined the effects of gender-affirming hormonal treatment (GAHT) on the immune system in trans gendermen. Men and women differ in their severity levels for infectious and ...