Panic is an uncomfortable feeling that the patient feels that his heart is beating and it is difficult to stop himself. There are many reasons for panic, and it is mainly seen in cardiovascular diseases. When patients have abnormal heart rate, tachycardia or bradycardia, they will have panic attacks. If patients have abnormal heart rhythm or irregular heartbeat, they can also have panic attacks, which can be diagnosed by ECG or ECG. Panic can be caused by coronary heart disease, myocarditis or heart failure, etc. Systemic diseases can also cause panic, such as hyperthyroidism, anemia and fever. It is recommended to actively treat the original disease. Panic may occur after severe emotional fluctuations or overexertion or strenuous exercise, which is a normal phenomenon and does not need to be treated.