24-hour heartbeat monitoring is a test that monitors the changes in a patient’s heart rate over a 24-hour period and can detect arrhythmias that are difficult to find on a conventional ECG. The 24-hour heartbeat is usually monitored by 24-hour ambulatory electrocardiogram (ECG), which can continuously record and analyze the changes of human ECG for 24 hours, including the ECG data under different situations such as rest, activity, meal, work, study and sleep, and can detect arrhythmias that are not easy to be found by conventional ECG, such as paroxysmal arrhythmia. 24-hour ambulatory electrocardiogram is a commonly used clinical test, which is not only used for the diagnosis of arrhythmia, but also used for the diagnosis of ischemic heart disease, detection of artificial pacemakers and so on. 24-hour ambulatory electrocardiogram monitoring should be carried out under the guidance of a doctor, and if there is any discomfort, you should consult a doctor in time.