The sum of the existing information on HGH’s risks and benefits spans from alarmist threats to “too good to be true” success stories.

Body builders often turn to supplements to lose fat, build lean muscle mass and reduce recovery time after intense workouts. Because anabolic steroids are frequently banned in competitions, weightlifters turn to more natural supplements to produce results.

Sexual attraction may be more science than seduction, making “chemistry” between people a reality. National Public Radio reported that scientists in 1959, first identified chemical triggers sent and received by living organisms, and named them pheromones.

There are several hormones that are considered "female" hormones, though some of them are naturally produced in a man's body as well. What gives them the characteristic of being a female hormone is the role they play in a woman's fertility, and the fact that they are more predominant in women than in men.

A miscarriage, also known medically as a spontaneous abortion, is the natural loss of a fetus before the 20th week of pregnancy. Miscarriages occur for a range of reasons, including illness, infection, and hormonal or genetic abnormalities.

Hormones are molecules that your body uses for communication, often between organs in different organ systems or over long distances in the body. There are two major types of hormones: steroid hormones and protein, or peptide, hormones.

There are many hormone creams on the market that promise weight loss. The most common hormonal cream available for weight loss as of 2010 is progesterone cream. Perhaps the primary reason this is so popular is that it can be bought over the counter at most drug stores.

Although teenage girls are more prone to headaches than boys because of the hormonal changes that are rampant during menstruation, boys get headaches, too, and for many of the same reasons. According to a report by Dr. Donald W. Lewis in "American Family Physician,"

Luteinizing hormone is a gonadotropin that stimulates the testes in men and the ovaries in women. Your anterior pituitary gland secretes this important hormone, which is vital to your reproductive health. LH is a large glycoprotein made up of alpha and beta subunits.

The human body requires three types of macronutrients – those nutrients needed in large amounts, including carbohydrates, fats and proteins. Although all macromolecules consist of oxygen, hydrogen and carbon, the amino acids that make up proteins contain between 15 and 25 percent nitrogen and some contain sulfur.

Prempro is a combination of conjugated estrogens and medroxyprogesterone, used as hormone replacement therapy. It is approved by the Food and Drug Administration to treat the symptoms of menopause and for osteoporosis treatment in postmenopausal women.

Eighty percent of U.S. cows are injected with hormones to increase their size, lean meat production and feed use efficacy. Although the European Union stopped buying U.S. meat in 1985 due to hormone use, the public opinion on its safety remains torn. U.S. cattle and sheep are fed, implanted or injected with hormones.