Rapid heart rate may be caused by emotional excitement, anemia, hyperthyroidism, heart failure, etc. It can be improved through rest, correction of anemia, medication, etc. 1. Emotional excitement: the heart rate is too fast caused by emotional excitement or strenuous exercise, this is a physiological phenomenon, no special treatment, through rest, the heart rate will be able to return to normal. 2. Anemia: for example, patients with iron deficiency anemia, the body’s hemoglobin decreases, oxygen carrying capacity decreases, the body is in a state of hypoxia will reflexively cause a rapid heart rate, can be supplemented with iron to improve anemia, such as ferrous sulfate, to alleviate the symptoms of rapid heart rate. 3. Hyperthyroidism: some people’s heart rate is caused by hyperthyroidism, and the body secretes too much thyroid hormone related to the use of methimazole and other drugs to correct the hyperthyroidism, to improve the symptoms of rapid heart rate. 4. Heart failure: patients with heart failure, due to cardiac decompensation, resulting in organs and tissues ischemia and hypoxia, the compensatory period of the heart will be reflexively fast heart rate, you can use furosemide, metoprolol and other drugs to treat. The causes of rapid heart rate are more, serious and timely medical treatment, the above drugs need to be used under the guidance of a doctor.