Regular running exercise can lower the heart rate, but be aware of the exercise process, the heart rate will increase. For healthy people long-term exercise can reduce the heart rate, for some sick people, regular exercise will instead increase the burden on the heart. The resting heart rate decreases to some extent with long-term exercise such as running. There is scientific evidence that athletes or people who exercise regularly have a slower resting heart rate. The heart’s ability to eject blood each time is improved by increasing the heart’s reserve capacity after long-term exercise. Therefore, the efficiency of each blood supply is higher, and the heart only needs to make fewer beats per minute to output enough blood to supply the various tissues and organs of the body. If there is no organic disease, a fast heartbeat can be improved by exercise.