Slow heartbeat is not affected if it is a physiological manifestation, but if it is pathologic, it is not good and needs timely diagnosis and treatment. Under normal circumstances, the human heart rate should be 60-100 beats per minute, and a heart rate of less than 60 beats per minute is considered bradycardia. Factors that lead to slow heartbeat are divided into physiological and pathological two kinds, of which physiological bradycardia is mainly seen in athletes, the elderly, and ordinary people at rest or asleep, the slow heartbeat in this case often has no effect, the heart rate can often increase after the activity. If it is sinus node dysfunction or atrioventricular block, myocarditis, myocardial infarction and other heart diseases, or hypothyroidism, intracranial lesions caused by pathologic bradycardia is often harmful, may lead to dizziness, fainting and other symptoms, the need for timely intervention and treatment. Therefore, it is recommended to consult a doctor for standardized diagnosis and treatment when necessary.