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Answers to Important Medical Questions

Why does the left side of the body ache during a heart attack
A heart attack is caused by the blockage of blood flow to a portion of the heart muscle tissue. Think about the pain that would occur if you put a tight rubber band around your finger. Within a minute or two you start to experience some pretty intense and intolerable pain. This is due to a lack of oxygen getting to the tissues of the finger. Your heart muscle actually starts to hurt when it's blood supply is blocked just like the finger. Since the largest part of the heart is situated to the left of the breast bone (sternum) in the chest, people tend to feel the pain on the left.

The pain associated with a heart attack can radiate too. It can radiate to the left shoulder, left arm and elbow and all the way to the fingers. Likewise, it may radiate to the right shoulder, arm, elbow or fingers. It may radiate up the neck on either or both sides and cause aching in the jaw(s). Sometimes the pain will radiate to the back.

Where the pain is located and where it radiates, if it does, can depend on what part of the heart muscle is being affected, or starved of blood supply and therefore, oxygen.

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