Tachycardia refers to a significant increase in the age-appropriate heart rate. This can be harmless or dangerous, depending on the situation. Persistent tachycardia or tachycardia coupled with symptoms such as dizziness, fainting, or weakness should be medically evaluated.
Tachycardia can manifest as so-called palpitations (you can feel your heart beat fast). Other possible symptoms include dizziness, shortness of breath, sudden weakness, flutter in the chest, lightheadedness, and fainting. However, the majority of tachycardias occur more or less without any symptoms and only get diagnosed in the context of routine checkups. On the other hand, ventricular tachycardias can be an acute danger for the patient and necessitate immediate treatment.
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