Palpitations and panic attacks are not necessarily a precursor to disease and may be caused by physiologic factors. If the symptoms occur frequently or continue to be unable to relieve may also be a sign of disease factors, psychosomatic diseases. 1. Physiological factors: such as late at night, strenuous exercise, drinking strong tea and coffee, drinking alcohol may appear after palpitations and panic symptoms, after rest and adjustment, the symptoms can be relieved. At this time, palpitation and panic is not a harbinger of disease. 2. Disease factors: a variety of heart diseases, such as coronary artery disease, arrhythmia, cardiomyopathy and so on, can lead to palpitation and panic symptoms. When hypoglycemia occurs, patients may also experience weakness, dizziness, palpitations, panic attacks and cold sweats. Other patients such as hyperthyroidism and anemia may also have increased heart rate and subsequent palpitation and panic symptoms. 3. Psychosomatic diseases: Anxiety, depression, cardiac neurosis, etc., can appear somatization symptoms, such as palpitations and panic, chest tightness. And may be accompanied by depressed mood, sadness, anxiety, etc.. When palpitations and panic occur, rest can be taken care of and triggering factors can be avoided. If the symptoms continue to be unrelieved or occur frequently, it is recommended to consult a doctor for timely examination, including laboratory tests, electrocardiography, echocardiography, etc., combined with the patient’s clinical symptoms, to make a clear diagnosis and active treatment.