The causes of normal blood pressure and low heart rate include physiological (e.g. athletes) and pathological (e.g. cranial hypertension, arrhythmia) causes. 1. Physiological: under normal circumstances, heart rate and pulse rate are the same, and the heart rate of athletes is lower than that of normal people, because athletes’ long-term and extensive training increases the contractility of the myocardium, so that they can provide enough ejection volume to ensure the blood supply of the organism even if the heart rate is low. 2. Pathology: cranial hypertension occurs in cerebral edema, encephalitis and other diseases, which can lead to slower pulse rate, and cranial CT, lumbar puncture and other tests can assist in the diagnosis; cardiac arrhythmia, such as sinus bradycardia, III degree atrioventricular block, etc., can also lead to slower pulse rate, and electrocardiogram can assist in the clear diagnosis. Normal blood pressure but low pulse rate may be physiological or pathological, it is recommended to consult the hospital in time, except for pathological factors, to avoid delay.