The Mayo Clinic recognizes cholesterol as important for building healthy cells in the body. However, high cholesterol stops this process by producing fatty deposits in the blood vessels, ultimately blocking blood flow through the arteries. The risk of this blockage may lead to heart attack or stroke.

High blood sugar--abnormal, even dangerous levels of sugar in the blood--is known as hyperglycemia and is most often associated with the disease diabetes mellitus. However, different types of medications may also cause high blood sugar; this is sometimes known as medication-induced, or drug-induced, diabetes.

According to The Mayo Clinic, "A bruise forms when a blow breaks small blood vessels near your skin's surface, allowing a small amount of blood to leak out into the tissues under your skin. The trapped blood appears as a black-and-blue mark".

Diabetics have different blood sugar targets for the period before and after a meal. The American Diabetes Association recommends that blood sugar levels don't rise above 180 mg/dL 2 hours after a meal.

Anemia is a condition where your body produces an inadequate number of red blood cells. Anemia can also refer to a lack of the protein hemoglobin that makes blood red. Impaired blood cell production, heavy blood loss or diet deficiencies -- especially of B-12, folate and iron -- can all cause anemia.

Whether you're a frequent walker or only walk when necessary, experiencing numbness or poor blood circulation in your legs should never be left untreated. Poor leg circulation has various causes, including a lack of proper nutrition, obesity or simply standing in one position for too long.

A low white blood cell (WBC) count, known as leukopenia, can be caused by diseases such as leukemia, cancer, lupus, rheumatoid arthritis and some medications, according to the Mayo Clinic. Normal white blood count is 5,000 to 10,000 WBCs per microliter.

Hemoglobin is an important part of your blood that helps deliver iron and oxygen to healthy tissues. It's made up of four protein molecules called globulin chains. Two are alpha globulin, and two are beta globulin chains. The normal hemoglobin values for adult men range from 14gm/dl to 18 gm/dl.

Your white blood cells are components in your immune system that actively seek out and fight various forms of infection. When you exercise, these cells increase their numbers and circulate more quickly through your body.

Warfarin, also known by the brand name Coumadin, is a medication prescribed to treat individuals at risk for blood clot formation. This drug decreases vitamin K activity, which then reduces your body's ability to quickly form blood clots.

Humans breathe in oxygen and breathe out carbon dioxide. This process sounds simple, but the details are actually quite complex. During the process of breathing, humans convert sugar into energy. Carbon dioxide is a waste product of this process.

Proper circulation is essential for general health and well-being. Healthy arteries and blood vessels carry essential nutrients and oxygen to tissues and organs throughout the body. Certain natural supplements can strengthen blood vessels and promote healthy circulation.