Heartbeat Sensations
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Heartbeat Sensations: Common Causes
Conditions or circumstances that may bring on heart palpitations include:
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Exercise
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Anxiety, stress, or fear
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Fever
- Caffeine, nicotine, cocaine, or diet pills
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Overactive thyroid
- Anemia
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Hyperventilation
- Low levels of oxygen in your blood
- Medications such as thyroid pills (like levothyroxine or Synthroid), asthma drugs (for example, theophylline and some inhalers), beta blockers for high blood pressure or heart disease, or anti-arrhythmics (medications to treat an irregular heartbeat can sometimes cause a different irregular heart rhythm)
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Mitral valve prolapse -- a condition in which the valve that separates the left upper chamber (atrium) from the left lower chamber (ventricle) of the heart does not close properly
- Heart disease
- Electrolyte abnormality -- for example, low levels of potassium
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