(HealthDay News) — Heart palpitations are irregular heartbeats that should be observed by a doctor without delay.
The National Heart Lung and Blood Institute says triggers may include:
- Feeling strong emotions.
 - Engaging in strenuous activity.
 - Taking certain medications, including decongestants or diet pills.
 - Taking illegal drugs or consuming nicotine, caffeine or alcohol.
 - Having certain medical conditions, including anemia or thyroid disease.
 
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