Athletes who have been exercising for a long time can ensure effective body circulation at a relatively slow heart rate, which is usually maintained at about 40-50 beats. In the resting state, athletes do not need a very fast heartbeat. If the athlete is in an athletic state, the heartbeat will also accelerate and increase faster, and the body needs more oxygen consumption and faster circulation during exercise. From the big data, the slow heartbeat of athletes is also a good thing, indicating that the athletes themselves have a stronger heart reserve function, have better endurance as well as explosive power, and even some normal people will have a slower heartbeat after a long period of exercise, which is also a healthy performance.