Blood cholesterol levels have been proven to be a major, modifiable risk factor for the development of heart disease. A risk factor is a condition that increases your chance of getting a disease. The fact that high cholesterol is a modifiable risk factor is important. Unlike your gender or your age, the cholesterol level in your blood is something you have the ability to change. High cholesterol levels can be treated with lifestyle modifications, supplements and/or prescription medication. Treatment to change blood cholesterol levels have been shown to lower your risk of getting heart disease or having a heart attack or stroke.

Cholesterol builds up in the walls of your arteries. Over time, this buildup causes "hardening of the arteries" so that arteries become narrowed and blood flow to the heart is slowed down or blocked. You can imagine what that looks like if you think about the pipes under your kitchen sink. As they get clogged with food, grease and hair over time, the drainage of water slows and eventually stops completely. Since blood travels through these arteries, or pipes, to carry oxygen to your muscles, organs and tissues including your heart, a blockage could reduce enough blood and oxygen to your heart that you may suffer chest pain, called angina. If the blood supply to a portion of the heart is completely cut off by a blockage, the result is a heart attack. If this blockage occurs in your brain, the result is a stroke.

High blood cholesterol itself does not cause symptoms; so there are a lot of people that are completely unaware that their cholesterol level is too high. It is important to find out what your cholesterol numbers are because lowering cholesterol levels that are too high lessens the risk for developing heart disease and reduces the chance of a heart attack or stroke. Even if you have already had a heart attack or stroke, lower cholesterol will reduce your chance of having second one. Cholesterol lowering is important for everyone--younger, middle age, and older adults; women and men; and people with or without heart disease.

There are different kinds of cholesterol in your blood that can measured through a simple blood test preformed at your doctor