Cholesterol, Its Types and Influence
Nowadays the problem of abnormally high level of
cholesterol in the blood is being a burning issue of the
medical discussions. Before regarding the way how abnormally
high level of cholesterol may affect the health of a person,
we should first of all understand what cholesterol is and
why it is important for our body.
Cholesterol is a substance of a waxy type, which exists in
the fat, tissues, and blood. All the cells of our body
comprise cholesterol, which is responsible for the formation
of cell membranes and some hormones, for breaking down and
digesting fat. Cholesterol is provided by the liver and
carried around the whole organism in the bloodstream. At the
same time cholesterol could be found in many products, which
we eat everyday, for example, dairy products, meat and eggs.
The exceeded eating of high cholesterol products may lead to
its increase in the blood, what in its turn may cause
hypercholesterolemia, i.e. the excess of cholesterol in the
blood. Hypercholesterolemia is the main reason of coronary
heart disease, which may lead to a heart attack.
The distinguishing feature of cholesterol is its
non-dissolving character. It’s carried around by
lipoproteins, which fall into low-density lipoprotein (LDL)
and high-density lipoprotein (HDL).
The abnormally high level of low-density lipoprotein in the
blood may bring about insufficient feeding of the heart and
brain, because of the building up in the arteries. Along
with other substances the high level of low-density
lipoprotein creates a hard deposit, known as “plaque”, which
encumbers the transportation of the blood to the heart and
brain. Such a state is known as atherosclerosis. At the same
time a thrombus is formed near the plaque. The thrombus
hinders the normal blood flow to the heart, which may result
in a heart attack. That is why abnormally high level of
cholesterol of this type, which is usually called “bad”
cholesterol, is regarded as a risk factor for a heart
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HDL cholesterol is on the contrary regarded as “good”
cholesterol, because it is believed to lower the level of
unnecessary cholesterol and thus makes the risk of a heart
attack smaller. But it should be taken into account that a
low HDL level makes the possibility of a heart attack on the
contrary more probable.