, anger or fright) or physical (intense sporting activity or fever) or the use of stimulants, such as tobacco and caffeine. Occasionally, however, the heartbeat can be caused by a "heart or metabolic disease or be the effect of particular drugs , of which it represents a non-specific manifestation.
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The key to diagnosis is an electrocardiogram (ECG), which records the heart's electrical impulses and how they are conducted. Treatment is directed at the specific cause of the heartbeat.
which are felt in the precordium (part of the chest anterior to the breastbone), in the throat or neck. Palpitations can give the impression of an abnormality in the heart; often, however, this manifestation is transitory and completely harmless.
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