There are two reasons for panic in the afternoon: the first one is a normal physiological phenomenon, because when a person goes from sleep to wakefulness, the state of vagus nerve excitation changes to sympathetic nerve excitation. Sympathetic nerve excitement, adrenaline secretion increases, heart rate accelerates, thus the symptoms of panic. The second aspect is pathological disease, such as cardiogenic disease, common arrhythmia, such as a faster heart rate, the pulse per minute more than 100 times / minute, will also appear panic. A heart rate of more than 100 beats per minute can be seen in many types of arrhythmias. For example, sinus tachycardia, supraventricular tachycardia, ventricular tachycardia, atrial fibrillation, atrial flutter, etc. This type of disease must be diagnosed promptly at the hospital. Other diseases such as hyperthyroidism, anemia, etc. can also cause an increased heart rate, so it is important to go to the hospital to rule out the presence of organic diseases.