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6.04.2008

Understanding Cholesterol

With all the news and warnings about the dangers of high cholesterol, many people view cholesterol as a bad substance that should be eliminated completely from our lives. In truth, cholesterol serves some important functions in the body. In order to understand how cholesterol affects the body, one must first understand what cholesterol is.
Cholesterol is a waxy substance that is attached to the fats in our bloodstream and is present in all of the cells of the body. Cholesterol comes from food that we eat, as well as being manufactured directly by the liver. Cholesterol is an important regulator in the bloodstream, as it helps to regulate the formation of many cells as well as hormones. However, to have too high or too low of a cholesterol count in the blood can be a very dangerous factor, often leading to a heart attack or a stroke. Although cholesterol is prevalent in the blood stream, it cannot dissipate in the blood. The cholesterol maneuvers throughout the body attached to lipids (fats).
There are two main types of cholesterol. The first type is called LDL cholesterol, and the other is HDL cholesterol. LDL cholesterol, otherwise known as low-density lipoprotein, is considered the dangerous cholesterol. LDL cholesterol can build up on the artery walls. Over time this plaque build-up blocks blood flow, reducing circulation and causing stress and damage to the heart. This raises blood pressure, and eventually leads to heart disease or a heart attack. Individuals that have higher levels of LDL run a much higher risk of having heart disease. Although LDL is affected by genetics, there are several precautions that individuals can take towards keeping safe LDL levels.
The other form of cholesterol is HDL, or high-density lipoprotein. HDL is considered the good cholesterol. HDL cholesterol is important for the body to have as this type of cholesterol helps filter out LDL cholesterol from the lining of the arteries, as well as transporting fat in the bloodstream (triglycerides) to the liver so that it can be excreted from the body. It is believed that even having high levels of HDL is safe, as it can help protect one's heart from a heart attack or stroke. Low counts of HDL could potentially lead to a heart attack and stroke, however this is rare for people eating a western-style diet, which is typically high in both forms of cholesterol.
Most of the cholesterol in our bodies comes from the foods we eat. Foods high in fats, particularly saturated and trans fats, contribute to high levels of LDL cholesterol. Meat and dairy products are the main sources of LDL cholesterol, while leafy vegetables, fruits, and nuts are more nutritious alternatives that have higher levels of HDL cholesterol. While genetics does play a role in cholesterol levels, a change in diet is the most effective way to lower dangerous cholesterol levels, and reduce your risk of heart disease and associated health problems.
Certain natural substances found in Vasacor, including plant sterols, fish oils, and policosanol have been shown in numerous clinical studies to be highly effective in promoting healthy cholesterol levels, particularly when combined with a healthy diet and exercise. If you are concerned about your cholesterol levels, now is the time to make a change, and Vasacor can help.
The Article is Originally Published Here: Cholesterol Facts
Cholesterol Overview
Cholesterol is one of the lipids used extensively by our body for diverse array of functions. Cholesterol, along with some other lipids, forms important cellular structural components, makes steroidal hormones, & produces energy when decomposed. Cholesterol, at some levels, is produced by the body (without ever letting you know!) while it also finds its way in your body when you feast on that yummy creamy cake!
Cholesterol is broadly categorized, on the basis of its density, into following classes: High Density Lipoproteins, Low Density Lipoproteins, Intermediate Density Lipoproteins, Very Low Density Lipoproteins, Chylomicrons
The levels of these cholesterol types reflect the state of health of your body. The blood cholesterol levels define degree and asperity of a cascade of diseases, like:
Atherosclerosis & atherosclerosis associated cardiovascular disorders: Atherosclerosis is a stage of arteriosclerosis involving fatty deposits inside the arterial walls. This deposition of fatty acids is a long-term process, which in due course of time, leads to narrowing of arteries and to be hardened. It results in the diminution of arterial elasticity leading to reduction in the blood volume passed through them thus, leafing out various symptoms associated with cardiovascular diseases.
Vascular dementia & Alzheimer�s disease: Vascular dementia (or mental deterioration, in layman terms!) is caused when blood vessels deprive the brain of oxygen, as a result of which brain cells die. Some studies report high cholesterol levels to increase the risk of cognitive impairment.
A famous neurological disorder, Alzheimer�s disease is a progressive form of pre-senile dementia that results in impaired memory, which is followed by impaired thought and speech and finally complete helplessness. It has been reported that much of the damage of Alzheimer's is due to the deposition of a sticky protein, called beta-amyloid in the vital areas of the brain and unfortunately, higher levels of cholesterol are believed to accelerate the formation of beta-amyloid plaques!
Miscellaneous effects like peripheral vascular disease (numbness in limbs due to high cholesterol levels in blood vessels, blocking the flow of blood), cancer (due to suppression of a tumor suppression gene by TGF) & pregnancy colligated complications (due to dramatic rise in cholesterol count during pregnancy) have been reported quite frequently.
All these monstrous diseases certainly require us to stay informed about our cholesterol levels & overall lipid profiles. Usually, cardiovascular disease risk index (blood HDL & LDL ratio) is obtained by monitoring pulse rates, blood pressure, ECG, checking kidney functions, listening to heart beats and large arteries. However, a general quick idea of cholesterol levels can be obtained by various easy-to-use handy equipments available in the market which can used individually to test cholesterol levels without any laboratory expertise.
These testing machines are able to measure Low-density lipoprotein (LDL) cholesterol, High-density lipoprotein (HDL) cholesterol, triglycerides & total cholesterol with a reasonable accuracy.
The ideal cholesterol level in the blood is less than 5mmol/l. While the cholesterol levels between 6.5 to 7.8mmol/l are termed as moderate, anything above 7.8mmol/l is termed as Very High Cholesterol & surely you wouldn�t want your meter read anywhere near to it! So, stay informed and eat healthy!

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