Feeling panicky may occur under physiological conditions, such as drinking coffee, after strenuous exercise, emotional excitement; it may also be caused by pathologic diseases, such as tachyarrhythmia, hyperthyroidism and so on. Those caused by the former can be relieved on their own, while those caused by the latter require further treatment. Normal people may also experience panic in some special circumstances, such as drinking coffee, strenuous exercise, nervousness, due to the sympathetic excitation of the heartbeat will be accelerated, resulting in panic symptoms, but through rest will soon be relieved, do not need treatment. Pathological conditions cause panic, common in tachyarrhythmia, such as sinus tachycardia, atrial fibrillation, atrial flutter, ventricular tachycardia, etc.; may also be seen in anemia, hyperthyroidism, infections and other pathological conditions. To determine the cause, it is necessary to go to the hospital for further laboratory tests. If the primary cause is found, it is necessary to treat the primary disease. Ventricular tachycardia can be appropriately given drugs to control the ventricular rate, such as metoprolol. If there are frequent episodes of panic attacks or other uncomfortable symptoms, it is recommended to go to the hospital as soon as possible.