A slow heart rate requires firstly, a specific number of heart rates per minute, and secondly, organic heart disease needs to be ruled out, such as myocardial infarction, heart failure, valvular heart disease, and congenital heart disease. In addition, more common diseases such as bundle branch block, atrioventricular block, sinus block, or sick sinus syndrome. With the exclusion of these diseases, a simple physiologic slow heart rhythm, especially a heart rate of 50-60 beats per minute, is normal and does not require undue stress, special intervention or treatment. Under normal circumstances, the slower a person’s heart rate is, the better, without life-altering events such as dizziness or fainting. For example, a turtle has a heart rate of only 20-30 beats per minute, so it lives for thousands of years; a mouse has a very fast heart rate, so its life span is very short. So slow heart rate, life expectancy will be relatively long, of course, to exclude other diseases caused by death events. So physiologic slow heart rhythm, no need to deliberately deal with, continue to observe can be.