Though rarely used in men, female hormones such as estrogen and progesterone can be taken by males for medical conditions such as testicular cancer, prostate enlargement and aromatase deficiency. Female hormone treatment in men carries a number of risks, because it suppresses the production of testosterone.

Testosterone is a male sex hormone. This hormone is what makes males appear male. The responsibilities of testosterone include producing sperm, growing facial and body hair, building muscle and maintaining a man’s libido.

Insulin, a potent hormone released by the pancreas, keeps blood sugar levels in a healthy range. People with type 1 diabetes do not make enough insulin to maintain normal blood sugar levels. In type 2 diabetes, however, insulin levels can actually spike in an effort to overcome the body's resistance to its effects.

Many hormones are moving throughout your bloodstream and organs, carrying chemical messages. These include melatonin, insulin, testosterone, progesterone and estrogen. Hormones play a critical role in metabolism and reproduction, and they also affect mood.

Low estrogen levels often throw the body "off track." Estrogen is a hormone is found in both men and women, though women have higher amounts than men, as the hormone is essential for menstruation and reproduction cycles.

Soy is derived from the soya bean, a cholesterol-free legume that is high in protein and low in saturated fat. Soy has a high-fiber content and contains an abundance of vitamins and minerals, including calcium, iron, potassium and zinc. Soy is rich in B vitamins and a good source of omega-3 essential fatty acids.

Addison's disease, also called primary adrenal insufficiency, is a rare condition that affects your body's ability to produce adrenal hormones. Treatment for Addison's disease requires oral medications to replace these hormones, including corticosteroids and mineralocorticoids.

Follicle-stimulating hormone, or FSH, helps regulate the reproductive processes in both men and women. It affects the growth process, puberty maturation and the development of the body. FSH levels are used to help diagnose a number of factors including fertility.

Estrogen is the primary hormone produced in the ovaries. The ovaries begin their production of estrogen in response to chemical stimulation from the area of the brain known as the pituitary gland.

Estrogen is a steroid hormone produced by the ovaries in women and in small amounts in the testes in men, as well as in fat cells for both sexes.

Estrogen and testosterone are found in both men and women, in different concentrations. An imbalance of one or both of these hormones can have significant physical and psychological consequences and can be caused by illness, medications, tumors or, occasionally, genetic predisposition.

Estrogen is any substance, natural or artificial, which induces estrogenic activity. Estradiol is the most potent form of estrogen produced by the body. Derived from cholesterol, it is produced by fat cells, arterial walls, adrenal glands, brain tissue and the ovaries.