If a patient has a rapid heart rate after staying up late, the tachycardia is usually caused by sympathetic overexcitation due to excessive fatigue. In this case, it is necessary to go to the hospital for heart rate monitoring. If the patient’s ventricular rate is consistently above 100 beats per minute, the heart rate must be treated with medication to relieve the heart rate. Patients are advised to have an 18-lead ECG completed before medication is administered to avoid conditions such as unstable angina pectoris or acute coronary syndrome. If the tachycardia is caused purely by plant nerve dysfunction or sympathetic overexcitation, the tachycardia can be adjusted and relieved after resting from fatigue or after taking a small amount of certain Chinese medicines, such as heart stabilizing granules.