Cardiovascular System

Located in every inch of your body

What does the cardiovascular system do?

The cardiovascular system is run by the heart, which sends about five liters of blood to all parts of your body delivering oxygen and essential nutrients, and picking up carbon dioxide and wastes.

Some of the major parts:

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Blood

Blood is white and red blood cells suspended in plasma, which is 92% water. The most common part of blood is the red blood cells which carries hemoglobin (iron) which makes the oxygen stick to the red blood cells. Blood is what carries the nutrients to the tissues and the waste away.
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Cardiovascular Diseases

Atrial Fibrillation

Causes by Electrical impulses make the heart beat unorganized circles around inside the brain, which causes the heart muscles to quiver.


Symptoms include dizziness, weakness, fatigue, fainting or chest pain


This can lead to an enlarged heart, heart failure, or stroke.


Atrial Fibrillation is treated by implanting a pacemaker, using medication to slow the heart rate, or return the heart rythm back to normal

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High Cholesterol

High Cholesterol occurs when the ratio of lipids in the blood is too high and can clog blood vessels or harden the arteries.


Symptoms include chest pain, muscle weakness, and muscle pain due to lack of oxygen.


High Cholesterol is treated by reducing fact intake or general calorie intake, exercising more frequently, losing weight, or blood thinner medications.

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Hypertension

Hypertension is high blood pressure that is ongoing. When the heart has to push the blood through a lot of resistance, high blood pressure occurs.


Patients are more likely for coronary heart disease, congestive heart failure, and stroke.


Symptoms include headaches, nosebleeds, fatigue, flushed face, irregular heart beat, blurred vision, nausea, or a buzzing inside your head.


Treatments include quitting smoking, losing weight, exercising, low-sodium diet, and limiting alcohol consumption. Medications also include anti-hypertensives which return the blood pressure to normal.

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Running Decreases Your Chance of Heart Disease

Running even around the block can lessen chances of hardened arteries and blood clots.

Previously, it was thought that running marathons or triathlons make a person healthiest, however it's almost more beneficial to run gradually; there will be less injuries.