What is the difference between the resting heart rate and the working heart rate?

The resting heart rate is the number of times your heart beats per minute when you are at rest, typically measured in the morning before getting out of bed. In contrast, the working heart rate refers to the heart rate during physical activity or exercise, reflecting the increased demand for oxygen and nutrients by the muscles. While resting heart rate indicates overall cardiovascular fitness and health, the working heart rate can help assess exercise intensity and cardiovascular response during activity.