The heartbeat is generally faster in the morning, with a 24-hour heart rate of about 80,000 to 120,000 beats, and the heart rate can reach up to 180 beats/min, and the lowest can reach 40 beats/min. If there are no other symptoms, it is usually normal, mainly because the heart beat is regulated by nerves, more by sympathetic nerves during the day and more by parasympathetic nerves at night. Sympathetic nerves can make the heart beat faster and stronger, so as to provide more oxygen and nutrients to supply all parts of the body for labor, study, work, life, etc. At night when you sleep, mainly parasympathetic innervation, the heartbeat slows down, when the heart needs to rest but can not stop, so it needs to relieve the fatigue of the day by slowing down the heart rate, so as to accumulate energy to ensure the next day’s work, life and study. In addition, you need to pay attention to any abnormalities in the morning if your heart rate is particularly fast, monitor your blood pressure and observe whether there are any problems with it, and also pay attention to any other symptoms, such as chest tightness and breath-holding. If there are other abnormal changes, but they are different from the past and the symptoms are particularly obvious, it is recommended to go to the hospital for a specialist consultation.