Adult male heart rate of 60-100 beats/min is normal, the normal heart rate range for adults is 60-100 beats/min, and there is no correlation with gender. In general, if the heart rate is lower than 60 beats/min, it is called bradycardia, and if it is greater than 100 beats/min, it is called tachycardia. However, if an adult male is a sportsman or sports enthusiast, his heart rate is often around 50 beats/min, and there are no symptoms caused by bradycardia, it is considered normal. In normal people, the heart rate slows down during sleep or at rest. Bradycardia in pathological states can be seen in hypothermia, hypothyroidism, pathological sinus node syndrome, high atrioventricular block, etc. The heart rate increases when exercising with emotional excitement. Pathological states such as fever, hyperthyroidism, anemia, and myocardial ischemia can also cause the heart rate to increase. If your heart rate is abnormal, you should go to the hospital to find out the cause of the increase or decrease in heart rate.