40 years old. How normal is your heart rate?

In the quiet state, the normal heart rate of 40-year-old is 60-100 beats/min.

Heart rate refers to the speed of heart beats per minute. The normal adult heart rate measured in the quiet state should be 60-100 beats/min. The heart rate of 40-year-old people is normal if it is in this range. However, due to many factors affecting heart rate, it may sometimes change. For example, when strenuous exercise is carried out, the body oxygen consumption will increase. At this time, the heart rate may exceed the above range, but it usually gradually relieves after rest. It is generally considered normal. Secondly, the heart rate of people who exercise regularly may be lower than 60 beats per minute, which is caused by their strong cardiopulmonary function, which is also normal.