There are two major reasons for fast heartbeat and sleeplessness: the first major aspect is physiological condition, such as usual work stress, study tension or anxiety and nervousness, which leads to sympathetic excitement and accelerated heart rate before bedtime, and thus sleeplessness. This kind of condition is caused by physiological factors, through their own regulation may be improved. The second major aspect is pathological conditions, such as the presence of arrhythmias, most commonly sinus tachycardia, supraventricular tachycardia, ventricular tachycardia, atrial fibrillation and atrial flutter can all lead to a fast heart rate. This type of disease must be actively examined in the hospital for the presence of arrhythmias, and if available, a 24-hour ambulatory ECG can be done to clarify the diagnosis. Another type of disease is hyperthyroidism or anemia and other non-cardiogenic factors that lead to a faster heart rate, which also needs to be ruled out in the hospital.