If the pulse beats a few times and stops, it is usually due to cardiac arrest. Cardiac arrest, also called pulse arrest, is a sudden gap in the normal regular beating, a sinus arrest, the patient may have chest tightness, panic, or even blackness in front of the eyes, fainting. This symptom is caused by a sudden absence of contraction and diastole during the normal contraction and diastole of the heart, resulting in transient cerebral ischemia and hypoxia. If this happens, you need to go to the hospital for active treatment, wear a 24-hour ambulatory electrocardiogram, analyze how many times a day a person has sinus arrest according to the computer, and give active search for the original cause to correct this situation.