Walking and other aerobic physical activity has a direct effect on your blood's good cholesterol level. Regular physical activity, including walking, also "can help lower LDL (bad) cholesterol," according to the U.S. government's National Cholesterol Education Program.

An aneurysm is a dilation or ballooning of an artery or other blood vessel which causes the walls of the blood vessel to become stretched and weakened, as described by Merck, an online medical library.

A common risk of surgery is deep vein thrombosis. DVT is a blood clot that typically develops in the lower extremity, usually in the thigh or the calf. Bed rest and immobility promote stasis of the blood and are main factors in the development of DVT.

The human body has approximately 5 liters of blood circulating at any given time, consisting of cells and plasma, notes the Franklin Institute. The liquid portion of blood is the plasma and the solid portions of blood are blood cells.

When a woman of child-bearing age does not menstruate for three months or longer, she has a condition called secondary amenorrhea. This menstrual change has a variety of potential natural and abnormal underlying causes. While high consumption of protein carries some risks, it won't trigger the onset of amenorrhea.

Wearing your compression stockings while exercising is not contraindicated and in some cases, even recommended. The question is whether wearing your compression stockings while exercising is necessary and if they have any positive effects on exercise.

Anemia often results in a lower than normal level of red blood cells due to a deficiency in iron. Without iron, the body struggles to make hemoglobin, a protein that transports oxygen from the lungs to circulate in the body.

Prescription drugs like Lipitor have side effects and low cholesterol diets can be difficult to stick with. Apple Cider Vinegar, on the other hand, doesn’t have any negative side effects, and is easy to administer.

Boils, also referred to as abscesses, occur when bacteria invade a break in the skin, a blocked oil gland or hair follicle. White blood cells rush to the site to battle the bacteria, causing blood and pus to collect as an abscess deep within the skin.

White blood cells play a key role in defending the body against invading bacteria and viruses. When white blood cell levels become too low, a condition known as neutropenia, an individual may become more susceptible to infection. A number of diseases are known to lower white blood cell numbers.

Donating blood is a safe and fulfilling way to give community service and assist in saving lives. The American Red Cross states that one person's blood donation can save up to three individuals' lives. All donors must meet the eligibility requirements in order to donate blood.

A broken blood vessel in the brain is known as a hemorrhagic stroke. Roughly 10 to 15 percent of all first strokes are the result of a broken blood vessel in the brain, according to the American Heart Association and American Stroke Association Stroke Council.