What Is A Heart Attack ?WHAT IS A HEART ATTACK ? * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * What Is A Heart Attack ?
Think of your heart as a remarkable machine. It works non stop, 24/7, pumping oxygen-and-nutrient rich blood to the body. In order to pump blood out, however, the heart requires a steady flow of incoming blood. This is supplied to the heart through its coronary arteries. Coronary heart disease occurs when the arteries that supply blood to the heart muscle, become hardened and narrowed due to a build up of plaque on the arteries' inner walls, thereby reducing blood flow.
Plaque is an accumulation of fat, cholesterol and other substances. As plaque continues to build up in the arteries, blood flow to the heart is reduced.
When too little blood reaches the heart, chest pain or angina may occur. This pain may vary in frequency and severity.
It can be mild and intermittent, or more pronounced and steady, severe enough to make normal everyday activities difficult.
A heart attack occurs when an artery becomes totally blocked with plaque, preventing vital oxygen and nutrients from getting to the heart.
This can cause permanent damage to the heart muscle. The more time that passes without treatment to restore blood flow, the greater the damage.
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Severe problems linked to heart attack can include: 1. heart failure and 2. life-threatening arrhythmias (irregular heartbeats).
Heart failure is a condition in which the heart cannot pump enough blood throughout the body. Ventricular fibrillation is a serious arrhythmia that can cause death if not treated quickly.
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Acting fast at the first sign of heart attack symptoms can save your life and limit damage to your heart.
Treatment is most effective when started within 1 hour of the beginning of symptoms.
If you suspect that you or someone nearby is experiencing a heart attack, call 911 for emergency medical help immediately (in the U.K. dial 999).
The following 4 minute video clip from the British Heart Foundation is entitled " What Is A Heart Attack ? " It gives some straight forward facts about how our heart works and how to look after it. The information is well presented and can save your life. To begin viewing click on the arrow in the center of the screen.
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