Dehydroepiandrosterone, DHEA, plays an important role in the health of women. As the most prevalent steroid, DHEA affects a broad range of physiological and behavioral processes. Scientists consider DHEA a prohormone, a trigger for the production of fundamental substances like testosterone, progesterone and estrogen.

Abnormalities in blood cell counts can be serious signs of illness and disease, side effects of drugs or complications from medical procedures such as cancer treatments. MayoClinic.com defines leucopenia, or low white blood cell count, as a decrease in leukocytes, or disease-fighting cells in the blood.

Many medical professionals dispute the theory of a link between food, blood type and health, but the idea of a blood-type diet was popularized in the 1996 book “Eat Right 4 Your Type."

White blood cells are produced by the bone marrow and have an important role in preventing infection. White blood cells and the bone marrow are very sensitive to toxins, as well as a number of prescription medications that can also kill white cells.

Medical issues relating to the cardiac system can range from mild hypertension to heart disease to cardiac arrest. Regardless of the ailment, patients with heart issues can benefit greatly from improved blood circulation.

Ammonia is a toxic by-product that results when the body breaks down proteins. A healthy person's liver converts ammonia into urea, a nonpoisonous substance excreted in urine.

If you have high cholesterol levels, you have an increased risk of developing a variety of cardiovascular problems. If your high cholesterol levels affect the arteries in your limbs, it can cause tingling and numbness in your extremities.

Anemia is a condition in which you have low iron levels. Iron is an important nutrient because it helps your body make red blood cells and it helps your blood carry oxygen. Iron is found in a variety of sources such as beans; leafy green vegetables; beef; and in other meats such as duck, lamb and shrimp.

Your bloodstream is critical to your survival, because it's what carries oxygen and nutrient molecules to your body cells. Nutrient molecules that you absorb from the digestive tract can dissolve in the blood, and cells remove them from the blood as needed.

Learn about the stages of a tooth abscess, from tooth decay to infection and spread. Understand how to prevent and treat this serious dental condition.

Proper blood circulation plays a vital role in general health. The bloodstream continuously transports oxygen and nutrients to the brain, skin, and vital organs in the body. When your circulation is reduced, various diseases such as varicose veins, kidney disease, and even stroke may occur.

There are five kinds of white blood cells--lymphocytes, monocytes, neutrophils, eosinophils and basophils. Overall, these cells have the responsibility of protecting you against infections. They fight and destroy what they consider to be foreign invaders. In this fight, they have a “division of labor.