Tachycardia is a condition when the heart rate is greater than 100 beats per min at rest. The electrocardiogram is a diagnostic tool that measures and records the electrical activity of the heart. Bradycardia on the other hand is when the heart rate is slower than normal. The Tachycardia and bradycardia can arise from either the SA node or from other areas of the cardiac.
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unbalanced diet leds to deteriorated health .
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Tar and other ingredients found in smoke act as carcinogens which can cause an uncontrolled growth of cells
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to prevent the spreading of germs
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