The causes of rapid heartbeat include physiological causes, pathologic factors, drug factors and so on. 1. Physiological reasons: many people are often in high-pressure environment, such as work, study pressure, may cause physiological heart rate. Some patients may also have fast heartbeats due to high-intensity exercise or frequent drinking of strong tea. Physiological rapid heartbeat does not need special treatment, usually relax, do not often drink strong tea, can improve the physiological rapid heartbeat. 2. Pathological factors: in patients with myocarditis, hyperthyroidism, respiratory diseases, there may be different degrees of rapid heartbeat, it is recommended that patients timely treatment of the underlying diseases, the symptoms of rapid heartbeat can be improved. 3. Drug factors: many people take aminophylline, epinephrine and other drugs, may cause rapid heartbeat, if the symptoms are serious, it is recommended to change other drugs under the advice of the doctor to improve the symptoms of rapid heartbeat. It is recommended to keep a good mood, do not have too much psychological pressure, for the underlying disease, it is recommended to investigate the cause in time, according to the patient’s condition reasonable treatment.