The normal human heart rate is 60-100 beats per minute, lower than 60 beats per minute and higher than 100 beats per minute are abnormal, the heart rate is slightly faster after exercise and slower during sleep. A rapid heart rate is physiological, such as temper tantrums cause emotional excitement, the heart rate will exceed 100 beats per minute, after rest can return to the normal range, abnormal is not considered a disease. If the heart rate is lower than 60 beats per minute, accompanied by weakness, dizziness, poor mental health may be due to myocardial ischemia, you can do electrocardiogram, ultrasound to further confirm the diagnosis, if there is often chest tightness or tingling in the precordial area suspect heart attack. Chinese medicine believes that 70-80 beats per minute is the best range, more than 80 beats per minute is classified as hot evidence, less than 70 beats per minute is classified as cold or wet evidence, the normal human heart rate is 60-100 beats per minute, preferably 70-/80 beats per minute.