What is a heart attack?
Now imagine that one of these pipes is partially blocked by debris and rust. During a hot summer season, the rusty pipe is unable to keep up with the water needs of the garden. The area supplied by the partially blocked pipe begins to dry and turns brown, but is still alive, as shown on the right (above).. If the garden had symptoms, it would feel pain as it starves for water and nutrients.
What are the symptoms of a heart attack?
A heart attack may be the first symptom of coronary artery disease in many patients. In others, it may be preceded by days, weeks, months or even years of angina.Classic or commonest signals of a heart attack consists of pressure- like, squeezing, or tightness feeling in the center of the chest that may radiate or move to the left shoulder and arm. In some, it may move to both shoulders and arms, the jaw, or between the shoulder blades in the back. If this is merely an angina warning, the symptom may go away in a few minutes and then return.
Once a coronary artery is totally blocked, a heart attack takes place and the chest discomfort becomes more intense and persistent. The chest discomfort or pain may be accompanied by shortness of breath, unexplained anxiety (a sense of impending doom), weakness, marked fatigue, cold sweats, paleness and a feeling of skipped heart beats. It must be recognized that only one or some of these symptoms may accompany the chest discomfort of heart attack. Also, the symptoms may not be typical in some cases and shortness of breath, cold sweats or marked and sudden fatigue may be the only symptom
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