SVT, or Supraventricular Tachycardia, is a condition characterized by an abnormally fast heart rate that originates above the heart's ventricles. This rapid heartbeat can lead to symptoms such as palpitations, dizziness, and shortness of breath. SVT can occur in episodes and may last from a few seconds to several hours. The condition is often triggered by factors like stress, caffeine, or certain medications. While SVT is generally not life-threatening, it can be uncomfortable and may require treatment. Options include lifestyle changes, medications, or procedures like catheter ablation to help manage the heart rate effectively.