Because the maximum heart rate is an estimate of the heartbeat limit based on physiological conditions, the actual intensity should be suitable for people. For beginners, it can usually be kept at 60%-65%MHR. If you blindly pursue high intensity regardless of your physical condition, it is not good for your health.
Extended data
Normal people's heart rate in general life activities should be 60- 100 beats/min, that is, not less than 60 beats/min and not more than 100 beats/min. As we all know, if a normal person's heart has a strong blood supply capacity, then his heart rate will be lower than that of people in the same situation (age, weight, etc.). Generally speaking, athletes' heart rate is slower than that of ordinary adults, usually around 50 beats/minute. The younger the age, the faster the heart rate, the slower the heart rate of the elderly than the young, and the faster the heart rate of women than men of the same age. These are normal physiological phenomena.
References:
Baidu encyclopedia-heart rate