Tachycardia and tachycardia are the same. Heart rate is the number of times the heart beats per minute, and the normal range is 60-100 beats per minute. Below 60 beats per minute is called bradycardia and above 100 beats per minute is called tachycardia. There are many reasons for tachycardia, and tachycardia is classified as physiological tachycardia or pathological tachycardia. Physiological tachycardia can be caused by exercise, alcohol, heavy physical labor and emotional excitement, and the heart rate can return to normal after the stimulus disappears. Pathological tachycardia can be caused by a variety of diseases, the most common ones being fever, hyperthyroidism, anemia and diseases of the heart itself, such as ventricular precontraction, supraventricular tachycardia and atrial fibrillation. For the treatment of pathological tachycardia, the cause should be treated first, then for symptomatic treatment, and the heart rate can return to normal range after the original disease is treated. In summary, tachycardia and tachycardia are the same concept, that is, the number of heartbeats per minute exceeds the normal value.