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Why should an exercise session begin with a warm-up?

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A man in athletic clothing jogs along a paved path beside a black metal fence, with trees and another person in the background. — exercise Jogging.

Starting an exercise session with a warm-up is essential because it allows your body systems to adjust to increased metabolic demands. As you gradually increase the intensity of your movement, your heart rate rises, blood flow improves, and muscle temperatures increase.1

Beyond making the start of your workout more comfortable, warming up is considered a safer practice for your body. By progressively increasing your activity level—such as by gradually increasing your walking speed—you prepare your cardiovascular and muscular systems for more vigorous exertion.1

Would you like to know more about the importance of cooling down after your workout to prevent complications like fainting?