If the patient wakes up in the middle of the night with a strong heartbeat, this may be due to the patient waking up in his sleep and thus experiencing a rapid heartbeat. For such patients, there may be a neurasthenia or a disorder in the regulation of the vegetative nerve function itself. It is recommended that the patient should relax more, and take drugs that help promote sleep, such as oral sweet dream capsule or dexzopiclone tablets. In addition, it can also be combined to take drugs to inhibit sympathetic excitability, such as bisoprolol or metoprolol. An ambulatory electrocardiogram is recommended to assess the overall heart rate over a 24-hour period and the presence of arrhythmias during episodes of discomfort. Serum ions, thyroid function, and blood tests may also be ordered to rule out the presence of anemia, ionic disorders, and hyperthyroidism.