The Human Heart

The Human Heart
The human heart is an organ which pumps blood through blood
vessels by rhythmic contractions. It is composed of several
muscles, and is in every way a muscular organ. It is a
composition of involuntary and cardiac muscles. Involuntary
muscles are smooth and non-branching muscles that are
uncontrollable. An average human heart beats 72 times in a
single minute which means in a lifetime of 65 years, then
it will beat about 2.4 billion times.

The human heart, the most fundamental of organs in the
human anatomy, is located in the middle of the torso. Its
apex is slightly towards the left and that is why it is
often said that human heart is situated on the left side.
Another reason for this is that the left ventricle of the
heart pumps blood faster than that of right ventricle, thus
one can observe heavier beating of the heart on the left
side.

The heart performs various functions in the body. It
collects the de-oxygenated blood from the veins, keeps it
in the blood atrium, make it pure through pumping and
passes freshly oxygenated blood throughout the body via the
right ventricles. Unfortunately our hearts may develop
problems and diseases as we get older. Diabetes and blood
pressure cases are increasing day by day due caused as much
by depressing and stressful lives as by a clinical
condition, and these are directly affecting the working of
the human heart. Many of the problems can be cured at best
and controlled at worst by taking medical treatment for a
specific time, but many diseases do not yet have any
properly identified treatment or medication.

Resulting from hypertension, nervousness and stress, many
people suffer from cardiac arrest problems when the heart
stops beating. It can end in death if the heart is not
restarted, or does not restart. To restart the heart
mechanically a machine known as automated external
defibrillator, readily available in most hospitals and
within ambulances, should be introduced immediately.

High levels of cholesterol can cause dangerous
cardiovascular disease. More and more people are becoming
victims of high cholesterol levels. Unbalanced diets and
high intakes of fats results is reckoned to lead inevitably
artery diseases. Cholesterol is a blood fat, these fats
often referred to as triglycerides, which is required by
our body but it is all too easy for this to become out of
balance. The excess intake of wrong foods resulting in high
cholesterol levels causes atherosclerosis and leads to poor
functioning of arteries and further risk of heart attack.

Cardiac strokes are also a serious disease becoming
increasingly common these days. Along with poor diet,
increasing age also increases the risk of strokes. Elderly
people, especially women, have greater risk of heart attack
and stroke. Racial factors also play an important role in
the susceptibility to strokes as Negro women are more prone
to heart attacks and strokes than Caucasian women. If there
is family history of heart attacks, the chances to other
members of the family suffering too, especially offspring
and siblings, increase by 20-30 percent.

Typical symptoms of all heart diseases are high or low
blood pressure, poor resistance of the body to infection
and disease, skin problems, loss of appetite, emotional
swings and so on. The best way to prevent heart disease is
to eat only nutritious food that is low in fat and high in
fiber and do lots of exercise. However, if a person already
suffering from some heart problems, it is better to have
proper medication along with exercise and proper diet.

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