What body change is typically associated with the initiation of exercise?

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The initiation of exercise typically results in an increased heart rate, as the body responds to the demands of physical activity. During exercise, the muscles require more oxygen to generate energy, leading the cardiovascular system to work harder. This increased demand causes the heart to pump faster, which raises the heart rate to supply oxygen-rich blood to the working muscles.

While it's true that other bodily changes may occur during exercise, such as potential changes in blood pressure, metabolism, and appetite, the most immediate and noticeable change when starting to exercise is the increase in heart rate. This physiological response is crucial for supporting the body's increased energy requirements during activity.

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