What causes your heart to beat fast when you’re sitting?

Sitting will heartbeat fast general consideration and physiological, tachyarrhythmia, hyperthyroidism, anemia, infection, fever and other related.
1. Physiological: due to nervousness, anxiety, just after the end of the exercise sit down or drink strong tea, coffee and other excitatory beverages after the heart rate temporarily increased, panic, chest tightness and other symptoms, generally calm and rest can be relieved.
2. Tachyarrhythmia: such as frequent premature beats, paroxysmal atrial fibrillation, paroxysmal supraventricular tachycardia and other tachyarrhythmias will lead to rapid heart rate, patients may be accompanied by panic, sweating and other symptoms, through the electrocardiogram to clarify the type of arrhythmia.
3. Others: such as hyperthyroidism leads to accelerated metabolism, anemia and infection, fever and other diseases in the acute phase may cause the body to compensate for the accelerated heart rate.
If the heart rate accelerates when the patient is sitting, and cannot be relieved after resting, with obvious discomfort symptoms, it is recommended to go to the hospital as soon as possible, to clarify the cause and then actively treat it.